Synergy allows me to setup multiple (and I mean multiple, up to 9 I believe) systems, each with their own independent monitor, yet share one keyboard and mouse directly over the network. That's right, friends, no fuss, no muss, nothing further to buy. You simply setup one of the machines to act as the synergy server and let it know where the other machine's monitors live in relation to itself (e.g. my Windows laptop is on the left, my Mac laptop is on the right). Once you've got everyone else running the client software (which is available for Windows, Mac, and Linux), you're home free. Now you can use that single keyboard and mouse to dash around to which ever screen you want. It even copies clipboard text from machine to machine, yes, even cross platform. The latest stable build made a huge difference for me--I was experiencing a lot of dropped connections previously. Oh, and yes, the Mac keys maintain their position on my keyboard (the key directly to the left of the space bar is the command key, etc.)
Check it out, because free beats KVM any day, in my book.
- Hutch
Synergy