Multiple Monitor Switcher
basically i was wondering if someone would help me design a multiple computer multiple display switch box. so i have two desktop computers both support dual monitors so i would connect all 4 dvi connectors to the switch box it would then switch those two computers between dual monitors and a projector. this would be done by a easy access button. im thinking something like this http://www.belkin.com/uk/switch2/ except with more ports kinda.
any help would be greatly apreciated.