Want 2 monitors in linux? Ignore everyone and just do the following.
Edit your XF86Config
Look for: Section "Device"
Add these 2 lines:
Option "TwinView" "true"
Option "MetaModes" "1280x1024,1280x1024"
Save and restart X. Your done.
Monitors backwards? add this: Option "TwinViewOrientation" "LeftOf"