I have two monitors connected to my main rig, but one is just a 17in Gateway POS I took home instead of throwing away one time. I don't have them mounted right next to one another. I have the Gateway on a shelf to the upper left on my desk. I use it to put the server app, ventrilo, etc on or when I'm doing some misc photo or video editing, etc.

It doesn't work real well for the server remote as you still have to tab out of the game to have mouse control for the 2nd monitor window.

Multimonitor gaming has been a pipe dream for quite awhile going back to building racing sim chassis setups, etc.