Hi,
You might wanna try to install KDE (i use it). Go to
www.kde.org read manuals, download and install. U might wanna try GNOME, lots of people use it. The same with GNOME, go to
www.gnome.org, get it, install it and use it. I'll find installation note very easy, if you still have any question, you are welcom.
Take it easy.