Ximian 
Installed
Evolution and the
Ximian Desktop last week. Evolution is a huge improvement over versions I have played with before. The desktop is about the same as the Gnome desktop which comes with RedHat, in that it is minimalistic in an acceptable way, while simultaneously appearing to lack the things I want it to do. Between the multi-gnome-terminals and my shell scripts, however, I don't see a huge difference between Ximian and Gnome.