See my previous post here: http://blog.motre.net/2012/07/31/things-i-want-to-buy/
5. A computer KVM switch which has DVI for the monitor connection, PS/2 for the keyboard connection, and PS/2 for the mouse connection. There should be 4 ports for PCs. I also want separate “go to” buttons for each PC. It needs to be a small box form factor for a desktop.