Connecting multiple computers to one screen

[ejess]

I'm gona connect two computers to the same screen and need a switch for this, anyone have a specific suggestion on what hardware to use? Are there hardware with both digital and rgb-connectors (one computer has an older graphics card)? I've been looking for info on this but I mostly find stuff from very small companies and am just looking to get something mainstream that someone else has tried before so I know it's decent before I order...

What I really want to do is connect TWO computers (mine and my girlfriend's) to TWO screens but when I play poker I want to be able to use both screens without being all under the desk messing around with cables and stuff so if there is an even cooler way to do this where we could plug both screens and both computers into one big switch and pick screens and computers any way we like on the fly then I would be even more happy... any ideas on this?