The big three are KDE, Gnome, and XFCE, but I've also heard of IceWM, Blackbox, Enlightenment, and WindowMaker; but have yet to see anyone use these (seen screenshots of IceWM; it's an option to install with Gentoo?). Which one do you use? I have been using Gnome; thought KDE was too overdone and I hated the concept of Konquerer (or anything else that began with a captial K ), and XFCE was just a little too buggy. But Gnome has nice themes and is overall pretty easy. What do you use? If you want, post some screens!