Kann mich Wunderwuzzi was XFCE und XFree 3.3.x angeht nur anschliessen.
Und es ist sogar ein Desktopenvironment, nicht "nur" ein Windowmanager:
"
XFce is a lightweight desktop environment for various UNIX systems.
The XFce project was first started because I needed a simple, light and efficient environment for my Linux System.
There are now a lot of good environments and interfaces for UNIX based systems, but most are too heavy, or too expensive, or even both !
I wanted something easy to use and configure, stable, fast, and, at last but not least, visually appealing...
I believe that the desktop environment should be made to increase user productivity. Therefore, the goal is keep most system resources for the applications, and not to consume all memory and CPU usage with the desktop environment."
Zu Office, Mail- und Newsreader wurde eigentlich schon alles gesagt, was die Wahl der Distribution angeht hilft dir vielleicht ein Blick auf
Distrowatch.