Home: Triple 23" 1080p. I've used them in surround mode (game support is, in general, crap for that aspect ratio) and as separate monitors (gaming on the center screen).
Work: Quad 1600x1200 monitors (can't recall the size). Email & office crap in one, code and reference docs on two, one for compiling / debugging, and another for the application to work in.
Only one monitor? Did I time travel back to the dark ages or something? *shudder*