Sorry to steal your thunder Lavery and Fimmel but after amazing donations I have upgraded my computer to run with 4 monitors, yes 4! While they arn't great ones minus the one all the way to the left they work. Now on the one on the left, it is an 18 inch flat touch screen!, while I have yet installed what I need to run anything using the touch screen capabilities it still functions as an amazing monitor.
It is so cool, yet stretching things across all 4 looks rather awkward.
EDIT: OK the touch monitor isn't mine, sigh... It's the teams. It came with a beastly server we were donated and at the moment it is sitting at my house because we need to concentrate on finals rather than getting the server working. So until finals are over the touch monitor will act as a 4th monitor. Yet when I play Oblivion it becomes my main monitor, I roll my chair over put the keyboard on my lap and pull out the drawer further so I reach the mouse.