One "word"
JWM.
While I once enjoyed the cheerfulness of icon-based desktop environments, I realized quite a while ago that nothing beats the brutal efficiency of a lightweight windows manager + console. I have no particular interest in fancy backgounds, animations or desktop clutter. My computers are work tools, and them being more efficient means more time for me for non-work stuff -like computer games or mindlessly posting on El Reg ... oh wait. Bugger