That is a great thing about Linux, you can install and use many different desktop environments (such as [http://www.kde.org/ KDE], [http://www.gnome.org/ Gnome], [http://www.xfce.org/ Xfce], [http://www.kde.org/ Enlightenment], [http://toastytech.com/guis/sol.html Open Windows], [http://www.sun.com/software/looking_glass/ Project Looking Glass, WorkBench, Mezzo], etc...).