I've got two monitors.  But take this with a grain of salt because I'm not a PC gamer.  I use a console, but I do have the console hooked up via HDMI to one of my monitors.<p>I've got a 24" Dell rotated 90 degrees to portrait.  I have this one front and center so no moving of the of head.  This is where I do all my coding.  Lots and lots of vertical space (which is more important to me than horizontal).  That's the only thing on that monitor.<p>To the left, I have a 27" Dell that has my e-mail, Yammer, and a couple of other "all day" windows open.  I've got the Windows arranged from right to left - most important to least important.  E-Mail is on the far left as I get a lot of e-mail and most of it not important :)<p>I scan that monitor maybe once or twice an hour.  If I'm doing a lot of work on that monitor, I'll swivel my chair towards it and move the keyboard and mouse in front of it (both are wireless).<p>It works for me because it allows me to compartmentalize my day.  The setup cost me about 1300 at the time (900 for the 27" - no sale; 400 for the 24" - cheaper now).