KVM with DVI for G5 DP and AMD PC

I need a KVM that will work with the G5 DP desktop I just purchased, and my old scratch built PC, which has an AMD DC 64bit CPU. It must be DVI capable. If at all possible I'd like it to include stereo speaker support and also support all those weird buttons on a PC multimedia keyboard.

There are a few listed on the forums from a while ago, but I was hoping something cheaper that fits the above requirements is available now. (I'm a student and cash is somewhat of an issue).