Have a look at Gnome 3? and you want to have it, it’s simple with these following easy steps:

1. Install essential packages
sudo apt-get install curl libtiff4-dev libgstreamer0.10-dev libcroco3-dev xulrunner-dev mesa-utils mesa-common-dev libreadline5-dev libgl1-mesa-dev libwnck-dev librsvg2-dev libgnome-desktop-dev libgnome-menu-dev libffi-dev libgtk2.0-dev libgconf2-dev libdbus-glib-1-dev gtk-doc-tools gnome-common git-core flex bison automake build-essential icon-naming-utils autopoint libvorbis-dev libpam-dev libgcrypt-dev libtasn1-dev libtasn1-3-bin libgnome-keyring-dev libupower-glib-dev libxklavier16 libxklavier-dev xserver-xephyr python-dev libpulse-dev libjasper-dev jhbuild libgtop2-dev libsqlite3-dev libproxy-dev libdb-dev libproxy-dev libcups2-dev libusb-1.0-0-dev
2. Download the build script
wget http://git.gnome.org/browse/gnome-shell/plain/tools/build/gnome-shell-build-setup.sh
3. Run the build script
chmod +x gnome-shell-build-setup.sh
./gnome-shell-build-setup.sh
4. Build
jhbuild build
It may happen during the build process that some of the packages can not be installed, select option 2 to continue
*** Installing gnome-power-manager *** [39/41]
make install
make: *** No rule to make target `install’. Stop.
*** Error during phase install of gnome-power-manager: ########## Error running make install *** [39/41]
[1] Rerun phase install
[2] Ignore error and continue to next module
[3] Give up on module
[4] Start shell
[5] Reload configuration choice: 2
5. Try new Gnome
gnome-shell –replace
6. You should regularly check & build new code from gnome-git

i like Gnome3,gnome3 very beautyfull