I generally use Vim as an editor, Linux as an OS. And since I hate hate hate having to use the mouse when I'm trying to get work done, I've also started using The Antidesktop, which is basically a combination of ratpoison (a very minimal window manager) and screen. To complete my progression (regression?) into a 1980's-esque world of text and mouselessness, I'm also trying out and liking elinks as a Web browser, with Mozilla running in a background window for the times when I really need to see images. People think I'm nuts, but I actually like this setup for its simplicity and efficiency.