Come on guys, what's wrong with ya? Got 2 PCI-e slots? Get 4 monitors!
Seriously, the productivity jump from 2 to 3 is at least as big as from 1 to 2 (the 4th, take it or leave it really but very useful sometimes).
I should upgrade really for the sake of my eyes, but I love my 3 x 21" (oldskool 3:4 CRT) setup + a 19" LCD on top of one of the old lumps.
