2 computers running through 1?

[Delltron]

Ok, so i have an awesome computer right now (P4 2.4, 1 gig ram, 200 hdd, 2 19" monitors...etc) but I would like to add a 3rd monitor and another small cpu-like computer. But here is the kicker - is there a way to have all 3 monitors running through the main computer, but then be able to switch it over to the other computer with a click of a button?

 

[ChaotycEnygma]

as a matter of fact, that is exactly how i run my main setup. basically i have my main video card with two heads and a seperate pci card for the third monitor. then, i have a kvm switch for that third where all the computers can use that third encluding my own. very simple actually.