why not just use one monitor?
even if youre doing video editing or graphics editing, you only really need one monitor.
and u should probably just use a mac, since the mac, despite sucking for gaming, is great for video/graphics editing.
on a mac (my friends father has this) he has a G4 with two 2.8ghz processors in it, and a 32" screen, he can do very professional graphical editing with this one 32" screen, and thats his job, plus, with 2 screens, what do you get thats better?
one semi-big widescreen with a thick line down the middle?
And above all else this, to thine own self be true.