Currently, I have two computers, keyboards, mice, monitors. I am in the process of building a new computer, which will have a quadcore processor for four-boxing, as I use my main tank "alone" on the other computer, which is about two years old.

There are certain times when I will only be playing one character, and it would be nice to have the newer, upgraded machine used in that case with the two year old machine used for ventrilo or something similar.

Does a piece of hardware exist that will allow me to "switch" which keyboard, video, and mouse are hooked up to both computers?