Already written about this

http://www.dual-boxing.com/forums2/viewtopic.php?t=424


Right now though, I opted to simply use the 30" turned sideways (vertical). I do not suggest multiboxing with 30" screens (full sized).

I use a special mouse cage program to prevent the mice from moving beyond 50% of the screen as well as WoW Maximizer to set it full screen windowed but only on one half of the screen. The other half is not used for those boxes (yet).

KVM and other solutions are awkward.... one MIGHT could stream the screen in at a lower resolution to display 2 WoWs on 1 screen..... given enough real time processing power. That or run 2 WoWs on 1 30" on 1 machine.