Sharing I/O devices between different OSs

I use a Linux Desktop and a Windows PC. I would like to share the keyboard, mouse and monitor between these two systems.

Does anyone know more about the KVM devices which will work for this? Is there any other method which I can use? Where can I get more details about this?

Thanks,
Sands.

KVM's are hardware based, and do not require anything from the OS to run. If you need a KVM, I have a 4 port one (Including cables). PM me if intrested.