Easiest way to switch main monitors with ATI

[madh83]

I've got an HD3850 connected to two monitors, and was wondering what the easiest way to switch the main monitor between the two was? I've got it setup where the desktop is extended to both at the moment, but sometimes I like to play games on the 2nd monitor because it's bigger. Would like to get it so that I can just switch with a few key presses.

 

[Tempered81]

ati tray tools
http://www.guru3d.com/article/atitraytools/189/


more options than nvidia control panel + ntune, and
fits on a floopy ftw