Setup =gnome-base/gnome-3.2.1

console# emerge --version
Portage 2.1.10.41

/////////////////
If to mask under the version emerge takes the previous version:

console# ACCEPT_KEYWORDS="~x86" emerge -p =gnome-base/gnome-3.2.1 |& grep games
[ebuild  N     ] games-board/aisleriot-3.2.2

console# echo ">=games-board/aisleriot-3.2.2" >> /etc/portage/package.mask

console# ACCEPT_KEYWORDS="~x86" emerge -p =gnome-base/gnome-3.2.1 |& grep games
[ebuild  N     ] games-board/aisleriot-3.2.1
/////////////////

console# eselect profile set 4
console# eselect profile list
Available profile symlink targets:
  [4]   default/linux/x86/10.0/desktop/gnome *

First, you need to install X:
console# emerge -pv x11-base/xorg-x11
or only the server
console# emerge -pv x11-base/xorg-server

At the moment of creation this demonstration, gnome-3.2.1 is marked by flags instability for amd64 and x86
I recommend to execution, but only one times:
console# emerge --autounmask-write=y =gnome-base/gnome-3.2.1
console# dispatch-conf (or etc-update)

That the future updates too were setup:
console# sed "s/^=/>=/" /etc/portage/package.accept_keywords > /etc/portage/package.accept_keywords_new
console# mv /etc/portage/package.accept_keywords_new /etc/portage/package.accept_keywords


Now emerge will allow to setup =gnome-base/gnome-3.2.1 :)

It is possible to cut this list of packages at once (to a wish, but I won't do it):
	accessibility? (
		>=app-accessibility/at-spi2-atk-2.2.1
		>=app-accessibility/at-spi2-core-2.2.1
		>=app-accessibility/caribou-0.4.1
		>=app-accessibility/orca-${PV}
		>=gnome-extra/mousetweaks-${PV} )
Adding a flag -accessibility in package.use:
console# echo ">=gnome-base/gnome-3.2.1 -accessibility" >> /etc/portage/package.use


The fastest
./pkmerge =gnome-base/gnome-3.2.1
Full tree of dependences
./pkmerge =gnome-base/gnome-3.2.1 --emerge="-e"
With descriptions of packages (long)
./pkmerge =gnome-base/gnome-3.2.1 --desc
Full tree of dependences with descriptions of packages (even longer)
./pkmerge =gnome-base/gnome-3.2.1 --desc --emerge="-e"

console# ./pkmerge =gnome-base/gnome-3.2.1

These are the packages that would be merged:

Calculating dependencies  ..... done!
[ebuild  N    ~] gnome-base/gnome-3.2.1  USE="cdr cups extras fallback -accessibility"
[ebuild  N    ~]  gnome-base/gnome-shell-3.2.2.1  USE="bluetooth networkmanager"
[ebuild  N     ]   gnome-base/gnome-common-3.1.0
[ebuild  N     ]   net-libs/libsoup-2.36.1  USE="introspection ssl -debug -doc -samba -test"
[ebuild  N     ]    dev-libs/gobject-introspection-1.30.0-r2  USE="-doc -test"
..............
[ebuild  N    ~]  gnome-base/gnome-applets-3.2.1  USE="gnome ipv6 policykit -networkmanager"
[ebuild  N    ~]  gnome-base/gdm-3.2.1.1-r2  USE="consolekit fallback gnome-keyring gnome-shell introspection ipv6 tcpd xklavier -accessibility -debug -fprint (-selinux) -smartcard -test -xinerama"
[ebuild  N     ]   x11-apps/xhost-1.0.4  USE="ipv6"
[ebuild  N     ]   x11-apps/sessreg-1.0.7
[ebuild  N     ]  x11-themes/gnome-icon-theme-extras-3.0.0gnome-base/gnome-3.2.1:
gnome-base/gnome-shell-3.2.2.1:
gnome-base/gnome-common-3.1.0:
net-libs/libsoup-2.36.1:
dev-libs/gobject-introspection-1.30.0-r2:
x11-libs/cairo-1.10.2-r1:
..............
gnome-base/gnome-applets-3.2.1:
gnome-base/gdm-3.2.1.1-r2:
x11-apps/xhost-1.0.4:
x11-apps/sessreg-1.0.7:
x11-themes/gnome-icon-theme-extras-3.0.0:

Edit /var/tmp/pkscript/pks120202-02-55-34

console# /var/tmp/pkscript/pks120202-02-55-34
S gnome-base/gnome-3.2.1

1+ gnome-base/gnome-3.2.1

console# nano /var/tmp/pkscript/pks120202-02-55-34
//// $pk[][S-setup or E|M-exclude]
//// Delete # where need.
 $pk[][S]=/**/"gnome-base/gnome-3.2.1";
 $pk[][M]=/*||*/"net-im/empathy-3.2.2";
 $pk[][M]=/*|||*/"media-video/cheese-3.2.2";
 $pk[][M]=/*||||*/"media-video/gnome-video-effects-0.3.0";
 $pk[][M]=/*|||*/"net-im/telepathy-connection-managers-1";
 $pk[][M]=/*||*/"media-video/totem-3.2.1";
 $pk[][M]=/*||*/"app-cdr/brasero-3.2.0-r1";
 $pk[][M]=/*||*/"media-sound/sound-juicer-2.99.0_pre20111001";
 $pk[][M]=/*||*/"app-misc/tracker-9999";
 $pk[][M]=/*||*/"net-misc/vino-3.2.2";
 $pk[][M]=/*||*/"gnome-extra/gnome-documents-0.2.1";
 $pk[][M]=/*||*/"www-client/epiphany-3.2.1";
 $pk[][M]=/*||*/"mail-client/evolution-3.2.2";
 $pk[][M]=/*||*/"net-misc/vinagre-3.2.2";
 $pk[][M]=/*||*/"games-board/aisleriot-3.2.2";
 $pk[][M]=/*||*/"gnome-extra/gnome-games-3.2.1-r1";

console# /var/tmp/pkscript/pks120202-02-55-34 --desc
S gnome-base/gnome-3.2.1
M net-im/empathy-3.2.2
M media-video/cheese-3.2.2
M media-video/gnome-video-effects-0.3.0
M net-im/telepathy-connection-managers-1
M media-video/totem-3.2.1
M app-cdr/brasero-3.2.0-r1
M media-sound/sound-juicer-2.99.0_pre20111001
M app-misc/tracker-9999
M net-misc/vino-3.2.2
M gnome-extra/gnome-documents-0.2.1
M www-client/epiphany-3.2.1
M mail-client/evolution-3.2.2
M net-misc/vinagre-3.2.2
M games-board/aisleriot-3.2.2
M gnome-extra/gnome-games-3.2.1-r1

1! gnome-base/gnome-3.2.1 Meta package for GNOME 3, merge this package to install
2.! gnome-base/gnome-shell-3.2.2.1 Provides core UI functions for the GNOME 3 desktop
3..@ gnome-base/gnome-common-3.1.0 Common files for development of Gnome packages
3..@ net-libs/libsoup-2.36.1 An HTTP library implementation in C
3..@ net-libs/telepathy-glib-0.16.3 GLib bindings for the Telepathy D-Bus protocol.
3..! gnome-extra/evolution-data-server-3.2.3 Evolution groupware backend
4...@ dev-libs/nspr-4.8.9 Netscape Portable Runtime
4...@ dev-libs/libical-0.43 a implementation of basic iCAL protocols from citadel, previously known as aurore.
4...@ gnome-base/gconf-2.32.4 Gnome Configuration System and Daemon
4...@ net-libs/liboauth-0.9.6 C library implementing the OAuth secure authentication protocol
4...@ dev-libs/libgweather-3.2.1 Library to access weather information from online services
4...@ dev-libs/libgdata-0.10.1 GLib-based library for accessing online service APIs using the GData protocol
4...! net-libs/gnome-online-accounts-3.2.1 GNOME framework for accessing online accounts
5....@ dev-util/gdbus-codegen-2.30.2 GDBus code and documentation generator
5....@ net-libs/rest-0.7.12 Helper library for RESTful services
5....! gnome-base/gnome-control-center-3.2.2 GNOME Desktop Configuration Tool
6.....@ app-text/iso-codes-3.30 Provides the list of country and language names
6.....@ x11-libs/libxklavier-5.1 High level XKB library
6.....@ gnome-base/gnome-desktop-3.2.1 Libraries for the gnome desktop that are not part of the UI
6.....@ x11-libs/libXxf86misc-1.0.3 X.Org Xxf86misc library
6.....@ gnome-base/libgnomekbd-3.2.0-r1 Gnome keyboard configuration library
6.....@ media-libs/libcanberra-0.28-r5 Portable Sound Event Library
6.....@ net-libs/libsocialweb-0.25.20 Social web services integration framework
6.....# media-video/cheese-3.2.2 A cheesy program to take pictures and videos from your webcam
7......# media-video/gnome-video-effects-0.3.0 Effects for Cheese, the webcam video and picture application
6.....@ net-print/cups-pk-helper-0.2.1 PolicyKit helper to configure cups with fine-grained privileges
6.....@ app-admin/apg-2.3.0b-r5 Another Password Generator
6.....@ gnome-base/gnome-session-3.2.1-r1 Gnome session manager
6.....@ gnome-extra/nm-applet-0.9.2.0-r1 GNOME applet for NetworkManager
6.....@ sys-apps/accountsservice-0.6.15 D-Bus interfaces for querying and manipulating user account information
6.....@ gnome-base/gnome-menus-3.2.0.1-r1 The GNOME menu system, implementing the F.D.O cross-desktop spec
6.....@ x11-apps/xmodmap-1.0.5 utility for modifying keymaps and pointer button mappings in X
6.....@ gnome-base/libgtop-2.28.4 A library that provides top functionality to applications
5....@ net-libs/webkit-gtk-1.6.1-r301 Open source web browser engine
3..@ x11-wm/mutter-3.2.2 GNOME 3 compositing window manager based on Clutter
3..@ dev-libs/gjs-1.30.1 Javascript bindings for GNOME
3..@ app-accessibility/caribou-0.4.1 Input assistive technology intended for switch and pointer users
3..@ x11-apps/mesa-progs-8.0.1 Mesa's OpenGL utility and demo programs (glxgears and glxinfo)
3..@ dev-libs/folks-0.6.6 libfolks is a library that aggregates people from multiple sources
3..@ net-im/telepathy-logger-0.2.12 Telepathy Logger is a session daemon that should be activated whenever telepathy is being used.
2.@ gnome-base/gvfs-1.10.1 GNOME Virtual Filesystem Layer
2.! gnome-base/gnome-core-apps-3.2.1 Sub-meta package for the core applications integrated with GNOME 3
3..@ app-editors/gedit-3.2.6 A text editor for the GNOME desktop
3..@ gnome-extra/gnome-power-manager-3.2.1 Gnome Power Manager
3..# net-im/empathy-3.2.2 Telepathy client and library using GTK+
4...# net-im/telepathy-connection-managers-1 Meta-package for Telepathy Connection Managers
3..@ x11-terms/gnome-terminal-3.2.1 The Gnome Terminal
3..@ gnome-extra/gnome-screensaver-3.2.0 Replaces xscreensaver, integrating with the desktop.
3..@ gnome-extra/gnome-user-docs-3.2.1 GNOME end user documentation
3..@ media-gfx/eog-3.2.2 The Eye of GNOME image viewer
3..@ gnome-base/gnome-core-libs-3.2.1 Sub-meta package for the core libraries of GNOME 3
3..@ gnome-extra/yelp-3.2.1 Help browser for GNOME
3..@ gnome-extra/gnome-contacts-3.2.2 GNOME contact management application
3..@ app-crypt/seahorse-3.2.2 A GNOME application for managing encryption keys
3..# media-video/totem-3.2.1 Media player for GNOME
3..# app-cdr/brasero-3.2.0-r1 Brasero (aka Bonfire) is yet another application to burn CD/DVD for the gnome desktop.
2.@ gnome-base/gnome-fallback-3.2.1 Sub-meta package for GNOME 3 fallback mode
2.! gnome-base/gnome-extra-apps-3.2.1 Sub-meta package for the applications of GNOME 3
3..@ app-misc/tracker-0.12.9 A tagging metadata database, search tool and indexer
3..# net-misc/vinagre-3.2.2 VNC Client for the GNOME Desktop
3..# net-misc/vino-3.2.2 An integrated VNC server for GNOME
3..@ gnome-extra/gnome-tweak-tool-3.2.2-r2 Tool to customize GNOME 3 options
3..@ app-arch/file-roller-3.2.1 Archive manager for GNOME
3..# www-client/epiphany-3.2.1 GNOME webbrowser based on Webkit
3..# media-sound/sound-juicer-2.99.0_pre20111001 CD ripper for GNOME
3..# gnome-extra/gnome-documents-0.2.1 GNOME document manager
3..# games-board/aisleriot-3.2.2 A collection of solitaire card games for GNOME
3..@ gnome-extra/gnome-utils-3.2.1 Utilities for the Gnome desktop
3..# gnome-extra/gnome-games-3.2.1-r1 Collection of games for the GNOME desktop
3..@ gnome-extra/gnome-system-monitor-3.2.1 The Gnome System Monitor
3..@ net-analyzer/gnome-nettool-3.0.1 Collection of network tools
3..@ media-gfx/shotwell-0.11.6 Open source photo manager for GNOME
3..@ gnome-extra/gconf-editor-3.0.1 An editor to the GNOME 2 config system
3..@ gnome-extra/gucharmap-3.2.2 Unicode character map viewer and library
3..@ gnome-extra/gcalctool-6.2.0 A calculator application for GNOME
2.@ x11-themes/gnome-backgrounds-3.2.0 A set of backgrounds packaged with the GNOME desktop
2.@ gnome-base/gnome-applets-3.2.1 Applets for the GNOME Desktop and Panel
2.@ gnome-base/gdm-3.2.1.1-r2 GNOME Display Manager
2.@ x11-themes/gnome-icon-theme-extras-3.0.0 GNOME 2 icon theme extras

console# /var/tmp/pkscript/pks120202-02-55-34 --test
......
(dependency required by "gnome-base/gnome-control-center-3.2.2[cheese]" [ebuild])
(dependency required by "gnome-base/gnome-shell-3.2.2.1" [ebuild])
(dependency required by "gnome-base/gdm-3.2.1.1-r2[gnome-shell]" [ebuild])
(dependency required by "=gnome-base/gdm-3.2.1.1-r2" [argument])
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.

console# echo "gnome-base/gnome-control-center -cheese" >> /etc/portage/package.use

console# /var/tmp/pkscript/pks120202-02-55-34 --test
S gnome-base/gnome-3.2.1
M net-im/empathy-3.2.2
M media-video/cheese-3.2.2
M media-video/gnome-video-effects-0.3.0
M net-im/telepathy-connection-managers-1
M media-video/totem-3.2.1
M app-cdr/brasero-3.2.0-r1
M media-sound/sound-juicer-2.99.0_pre20111001
M app-misc/tracker-9999
M net-misc/vino-3.2.2
M gnome-extra/gnome-documents-0.2.1
M www-client/epiphany-3.2.1
M mail-client/evolution-3.2.2
M net-misc/vinagre-3.2.2
M games-board/aisleriot-3.2.2
M gnome-extra/gnome-games-3.2.1-r1

emerge -p --unordered-display --color=y --autounmask=y  =gnome-base/gnome-common-3.1.0 =net-libs/libsoup-2.36.1 =net-libs/telepathy-glib-0.16.3 =dev-libs/nspr-4.8.9 =dev-libs/libical-0.43 =gnome-base/gconf-2.32.4 =net-libs/liboauth-0.9.6 =dev-libs/libgweather-3.2.1 =dev-libs/libgdata-0.10.1 =dev-util/gdbus-codegen-2.30.2 =net-libs/rest-0.7.12 =app-text/iso-codes-3.30 =x11-libs/libxklavier-5.1 =gnome-base/gnome-desktop-3.2.1 =x11-libs/libXxf86misc-1.0.3 =gnome-base/libgnomekbd-3.2.0-r1 =media-libs/libcanberra-0.28-r5 =net-libs/libsocialweb-0.25.20 =net-print/cups-pk-helper-0.2.1 =app-admin/apg-2.3.0b-r5 =gnome-base/gnome-session-3.2.1-r1 =gnome-extra/nm-applet-0.9.2.0-r1 =sys-apps/accountsservice-0.6.15 =gnome-base/gnome-menus-3.2.0.1-r1 =x11-apps/xmodmap-1.0.5 =gnome-base/libgtop-2.28.4 =net-libs/webkit-gtk-1.6.1-r301 =x11-wm/mutter-3.2.2 =dev-libs/gjs-1.30.1 =app-accessibility/caribou-0.4.1 =x11-apps/mesa-progs-8.0.1 =dev-libs/folks-0.6.6 =net-im/telepathy-logger-0.2.12 =gnome-base/gvfs-1.10.1 =app-editors/gedit-3.2.6 =gnome-extra/gnome-power-manager-3.2.1 =x11-terms/gnome-terminal-3.2.1 =gnome-extra/gnome-screensaver-3.2.0 =gnome-extra/gnome-user-docs-3.2.1 =media-gfx/eog-3.2.2 =gnome-base/gnome-core-libs-3.2.1 =gnome-extra/yelp-3.2.1 =gnome-extra/gnome-contacts-3.2.2 =app-crypt/seahorse-3.2.2 =gnome-base/gnome-fallback-3.2.1 =app-misc/tracker-0.12.9 =gnome-extra/gnome-tweak-tool-3.2.2-r2 =app-arch/file-roller-3.2.1 =gnome-extra/gnome-utils-3.2.1 =gnome-extra/gnome-system-monitor-3.2.1 =net-analyzer/gnome-nettool-3.0.1 =media-gfx/shotwell-0.11.6 =gnome-extra/gconf-editor-3.0.1 =gnome-extra/gucharmap-3.2.2 =gnome-extra/gcalctool-6.2.0 =x11-themes/gnome-backgrounds-3.2.0 =gnome-base/gnome-applets-3.2.1 =gnome-base/gdm-3.2.1.1-r2 =x11-themes/gnome-icon-theme-extras-3.0.0 --exclude media-video/cheese --exclude media-video/gnome-video-effects --exclude net-im/empathy --exclude net-im/telepathy-connection-managers --exclude media-video/totem --exclude app-cdr/brasero --exclude net-misc/vinagre --exclude net-misc/vino --exclude www-client/epiphany --exclude media-sound/sound-juicer --exclude gnome-extra/gnome-documents --exclude games-board/aisleriot --exclude gnome-extra/gnome-games


These are the packages that would be merged, in order:

Calculating dependencies  ... done!
[ebuild  N     ] sys-apps/pciutils-3.1.7  USE="-network-cron -zlib"
[ebuild  N     ] app-text/libpaper-1.1.23
[ebuild  N     ] media-gfx/shared-color-profiles-0.1.4
[ebuild  N     ] app-text/poppler-data-0.4.4
[ebuild  N    ~] app-crypt/p11-kit-0.10  USE="-debug"
..............
[ebuild  N    ~] gnome-base/gnome-applets-3.2.1  USE="gnome ipv6 policykit -networkmanager"
[ebuild  N    ~] gnome-extra/gnome-tweak-tool-3.2.2-r2
[ebuild  N    ~] gnome-base/gdm-3.2.1.1-r2  USE="consolekit fallback gnome-keyring gnome-shell introspection ipv6 tcpd xklavier -accessibility -debug -fprint (-selinux) -smartcard -test -xinerama"
[ebuild  N    ~] app-misc/tracker-0.12.9  USE="eds exif flac gif gnome-keyring gstreamer gtk jpeg mp3 nautilus pdf tiff vorbis xml (-applet) -doc -firefox-bookmarks -flickr -gsf -iptc -laptop -networkmanager -playlist -rss -test -thunderbird -upnp -xine -xmp"
[ebuild  N    ~] gnome-extra/nautilus-tracker-tags-0.12.9

OK :)

Unnecessary packages are desirable for mask, that emerge them "casually" has not setup without any warning.
The difference between --mask and --mask-ver (with version) for emerge is shown at the top.

console# /var/tmp/pkscript/pks120202-02-55-34 --mask
net-im/empathy
media-video/cheese
media-video/gnome-video-effects
net-im/telepathy-connection-managers
media-video/totem
app-cdr/brasero
media-sound/sound-juicer
app-misc/tracker
net-misc/vino
gnome-extra/gnome-documents
www-client/epiphany
mail-client/evolution
net-misc/vinagre
games-board/aisleriot
gnome-extra/gnome-games

console# /var/tmp/pkscript/pks120202-02-55-34 --mask >> /etc/portage/package.mask

Now you can get a new tree.

console# /var/tmp/pkscript/pks120202-02-55-34 --new
New script /var/tmp/pkscript/pks120202-03-19-49

console# /var/tmp/pkscript/pks120202-03-19-49
S gnome-base/gnome-3.2.1
M net-im/empathy-3.2.2
M media-video/cheese-3.2.2
M media-video/gnome-video-effects-0.3.0
M net-im/telepathy-connection-managers-1
M media-video/totem-3.2.1
M app-cdr/brasero-3.2.0-r1
M media-sound/sound-juicer-2.99.0_pre20111001
M app-misc/tracker-9999
M mail-client/evolution-3.2.3
M net-misc/vino-3.2.2
M www-client/epiphany-3.2.1
M gnome-extra/gnome-documents-0.2.1
M net-misc/vinagre-3.2.2
M games-board/aisleriot-3.2.2
M gnome-extra/gnome-games-3.2.1-r1

1! gnome-base/gnome-3.2.1
2.@ gnome-base/gnome-shell-3.2.2.1
2.@ gnome-base/gvfs-1.10.1
2.! gnome-base/gnome-core-apps-3.2.1
3..@ app-editors/gedit-3.2.6
3..@ gnome-extra/gnome-power-manager-3.2.1
3..# net-im/empathy-3.2.2
4...# media-video/cheese-3.2.2
5....# media-video/gnome-video-effects-0.3.0
4...# net-im/telepathy-connection-managers-1
3..@ x11-terms/gnome-terminal-3.2.1
3..@ gnome-extra/gnome-screensaver-3.2.0
3..@ gnome-extra/gnome-user-docs-3.2.1
3..@ media-gfx/eog-3.2.2
3..@ gnome-base/gnome-core-libs-3.2.1
3..@ gnome-extra/yelp-3.2.1
3..@ gnome-extra/gnome-contacts-3.2.2
3..@ app-crypt/seahorse-3.2.2
3..# media-video/totem-3.2.1
3..# app-cdr/brasero-3.2.0-r1
2.@ gnome-base/gnome-fallback-3.2.1
2.! gnome-base/gnome-extra-apps-3.2.1
3..# media-sound/sound-juicer-2.99.0_pre20111001
3..# app-misc/tracker-9999
4...# mail-client/evolution-3.2.3
3..# net-misc/vino-3.2.2
3..@ gnome-extra/gnome-tweak-tool-3.2.2-r2
3..@ app-arch/file-roller-3.2.1
3..# www-client/epiphany-3.2.1
3..# gnome-extra/gnome-documents-0.2.1
3..# net-misc/vinagre-3.2.2
3..# games-board/aisleriot-3.2.2
3..@ gnome-extra/gnome-utils-3.2.1
3..# gnome-extra/gnome-games-3.2.1-r1
3..@ gnome-extra/gnome-system-monitor-3.2.1
3..@ net-analyzer/gnome-nettool-3.0.1
3..@ media-gfx/shotwell-0.11.6
3..@ gnome-extra/gconf-editor-3.0.1
3..@ gnome-extra/gucharmap-3.2.2
3..@ gnome-extra/gcalctool-6.2.0
2.@ x11-themes/gnome-backgrounds-3.2.0
2.@ gnome-base/gnome-applets-3.2.1
2.@ gnome-base/gdm-3.2.1.1-r2
2.@ x11-themes/gnome-icon-theme-extras-3.0.0

console# /var/tmp/pkscript/pks120202-03-19-49 --desc
S gnome-base/gnome-3.2.1
M net-im/empathy-3.2.2
M media-video/cheese-3.2.2
M media-video/gnome-video-effects-0.3.0
M net-im/telepathy-connection-managers-1
M media-video/totem-3.2.1
M app-cdr/brasero-3.2.0-r1
M media-sound/sound-juicer-2.99.0_pre20111001
M app-misc/tracker-9999
M mail-client/evolution-3.2.3
M net-misc/vino-3.2.2
M www-client/epiphany-3.2.1
M gnome-extra/gnome-documents-0.2.1
M net-misc/vinagre-3.2.2
M games-board/aisleriot-3.2.2
M gnome-extra/gnome-games-3.2.1-r1

1! gnome-base/gnome-3.2.1 Meta package for GNOME 3, merge this package to install
2.@ gnome-base/gnome-shell-3.2.2.1 Provides core UI functions for the GNOME 3 desktop
2.@ gnome-base/gvfs-1.10.1 GNOME Virtual Filesystem Layer
2.! gnome-base/gnome-core-apps-3.2.1 Sub-meta package for the core applications integrated with GNOME 3
3..@ app-editors/gedit-3.2.6 A text editor for the GNOME desktop
3..@ gnome-extra/gnome-power-manager-3.2.1 Gnome Power Manager
3..# net-im/empathy-3.2.2 Telepathy client and library using GTK+
4...# media-video/cheese-3.2.2 A cheesy program to take pictures and videos from your webcam
5....# media-video/gnome-video-effects-0.3.0 Effects for Cheese, the webcam video and picture application
4...# net-im/telepathy-connection-managers-1 Meta-package for Telepathy Connection Managers
3..@ x11-terms/gnome-terminal-3.2.1 The Gnome Terminal
3..@ gnome-extra/gnome-screensaver-3.2.0 Replaces xscreensaver, integrating with the desktop.
3..@ gnome-extra/gnome-user-docs-3.2.1 GNOME end user documentation
3..@ media-gfx/eog-3.2.2 The Eye of GNOME image viewer
3..@ gnome-base/gnome-core-libs-3.2.1 Sub-meta package for the core libraries of GNOME 3
3..@ gnome-extra/yelp-3.2.1 Help browser for GNOME
3..@ gnome-extra/gnome-contacts-3.2.2 GNOME contact management application
3..@ app-crypt/seahorse-3.2.2 A GNOME application for managing encryption keys
3..# media-video/totem-3.2.1 Media player for GNOME
3..# app-cdr/brasero-3.2.0-r1 Brasero (aka Bonfire) is yet another application to burn CD/DVD for the gnome desktop.
2.@ gnome-base/gnome-fallback-3.2.1 Sub-meta package for GNOME 3 fallback mode
2.! gnome-base/gnome-extra-apps-3.2.1 Sub-meta package for the applications of GNOME 3
3..# media-sound/sound-juicer-2.99.0_pre20111001 CD ripper for GNOME
3..# app-misc/tracker-9999 A tagging metadata database, search tool and indexer
4...# mail-client/evolution-3.2.3 Integrated mail, addressbook and calendaring functionality
3..# net-misc/vino-3.2.2 An integrated VNC server for GNOME
3..@ gnome-extra/gnome-tweak-tool-3.2.2-r2 Tool to customize GNOME 3 options
3..@ app-arch/file-roller-3.2.1 Archive manager for GNOME
3..# www-client/epiphany-3.2.1 GNOME webbrowser based on Webkit
3..# gnome-extra/gnome-documents-0.2.1 GNOME document manager
3..# net-misc/vinagre-3.2.2 VNC Client for the GNOME Desktop
3..# games-board/aisleriot-3.2.2 A collection of solitaire card games for GNOME
3..@ gnome-extra/gnome-utils-3.2.1 Utilities for the Gnome desktop
3..# gnome-extra/gnome-games-3.2.1-r1 Collection of games for the GNOME desktop
3..@ gnome-extra/gnome-system-monitor-3.2.1 The Gnome System Monitor
3..@ net-analyzer/gnome-nettool-3.0.1 Collection of network tools
3..@ media-gfx/shotwell-0.11.6 Open source photo manager for GNOME
3..@ gnome-extra/gconf-editor-3.0.1 An editor to the GNOME 2 config system
3..@ gnome-extra/gucharmap-3.2.2 Unicode character map viewer and library
3..@ gnome-extra/gcalctool-6.2.0 A calculator application for GNOME
2.@ x11-themes/gnome-backgrounds-3.2.0 A set of backgrounds packaged with the GNOME desktop
2.@ gnome-base/gnome-applets-3.2.1 Applets for the GNOME Desktop and Panel
2.@ gnome-base/gdm-3.2.1.1-r2 GNOME Display Manager
2.@ x11-themes/gnome-icon-theme-extras-3.0.0 GNOME 2 icon theme extras

Meta-packages are not needed for work, so it is possible to do without them :)
console# /var/tmp/pkscript/pks120202-03-19-49 --desc | grep -i meta
1! gnome-base/gnome-3.2.1 Meta package for GNOME 3, merge this package to install
2.! gnome-base/gnome-core-apps-3.2.1 Sub-meta package for the core applications integrated with GNOME 3
4...# net-im/telepathy-connection-managers-1 Meta-package for Telepathy Connection Managers
3..@ gnome-base/gnome-core-libs-3.2.1 Sub-meta package for the core libraries of GNOME 3
2.@ gnome-base/gnome-fallback-3.2.1 Sub-meta package for GNOME 3 fallback mode
2.! gnome-base/gnome-extra-apps-3.2.1 Sub-meta package for the applications of GNOME 3

console# /var/tmp/pkscript/pks120202-03-19-49 --test
S gnome-base/gnome-3.2.1
M net-im/empathy-3.2.2
M media-video/cheese-3.2.2
M media-video/gnome-video-effects-0.3.0
M net-im/telepathy-connection-managers-1
M media-video/totem-3.2.1
M app-cdr/brasero-3.2.0-r1
M media-sound/sound-juicer-2.99.0_pre20111001
M app-misc/tracker-9999
M mail-client/evolution-3.2.3
M net-misc/vino-3.2.2
M www-client/epiphany-3.2.1
M gnome-extra/gnome-documents-0.2.1
M net-misc/vinagre-3.2.2
M games-board/aisleriot-3.2.2
M gnome-extra/gnome-games-3.2.1-r1

emerge -p --unordered-display --color=y --autounmask=y  =gnome-base/gnome-shell-3.2.2.1 =gnome-base/gvfs-1.10.1 =app-editors/gedit-3.2.6 =gnome-extra/gnome-power-manager-3.2.1 =x11-terms/gnome-terminal-3.2.1 =gnome-extra/gnome-screensaver-3.2.0 =gnome-extra/gnome-user-docs-3.2.1 =media-gfx/eog-3.2.2 =gnome-base/gnome-core-libs-3.2.1 =gnome-extra/yelp-3.2.1 =gnome-extra/gnome-contacts-3.2.2 =app-crypt/seahorse-3.2.2 =gnome-base/gnome-fallback-3.2.1 =gnome-extra/gnome-tweak-tool-3.2.2-r2 =app-arch/file-roller-3.2.1 =gnome-extra/gnome-utils-3.2.1 =gnome-extra/gnome-system-monitor-3.2.1 =net-analyzer/gnome-nettool-3.0.1 =media-gfx/shotwell-0.11.6 =gnome-extra/gconf-editor-3.0.1 =gnome-extra/gucharmap-3.2.2 =gnome-extra/gcalctool-6.2.0 =x11-themes/gnome-backgrounds-3.2.0 =gnome-base/gnome-applets-3.2.1 =gnome-base/gdm-3.2.1.1-r2 =x11-themes/gnome-icon-theme-extras-3.0.0 --exclude net-im/empathy --exclude media-video/cheese --exclude media-video/gnome-video-effects --exclude net-im/telepathy-connection-managers --exclude media-video/totem --exclude app-cdr/brasero --exclude media-sound/sound-juicer --exclude app-misc/tracker --exclude mail-client/evolution --exclude net-misc/vino --exclude www-client/epiphany --exclude gnome-extra/gnome-documents --exclude net-misc/vinagre --exclude games-board/aisleriot --exclude gnome-extra/gnome-games


These are the packages that would be merged, in order:

Calculating dependencies  . ..... done!
[ebuild  N     ] sys-apps/pciutils-3.1.7  USE="-network-cron -zlib"
[ebuild  N     ] app-text/libpaper-1.1.23
[ebuild  N     ] app-text/poppler-data-0.4.4
[ebuild  N    ~] app-crypt/p11-kit-0.10  USE="-debug"
[ebuild  N     ] media-gfx/shared-color-profiles-0.1.4
..............
[ebuild  N    ~] gnome-extra/gnome-contacts-3.2.2
[ebuild  N    ~] gnome-base/gnome-fallback-3.2.1  USE="cups"
[ebuild  N    ~] gnome-base/gnome-applets-3.2.1  USE="gnome ipv6 policykit -networkmanager"
[ebuild  N    ~] gnome-extra/gnome-tweak-tool-3.2.2-r2
[ebuild  N    ~] gnome-base/gdm-3.2.1.1-r2  USE="consolekit fallback gnome-keyring gnome-shell introspection ipv6 tcpd xklavier -accessibility -debug -fprint (-selinux) -smartcard -test -xinerama"

FINISH :)
console# /var/tmp/pkscript/pks120202-03-19-49 --exec ; shutdown -h now

Go to sleep :)