If you’ve more than one computer at your desk, and one of them is a Mac, you need osx2x. It lets you use all the other computers via VNC or X-Windows connections, using only the one mouse and keyboard. Shiny.
Sadly, the download link on the main site is broken. This is a bit of a pain as it doesn’t appear to be mirrored anywhere.
Luckily, I found one chap who had created a fresh distribution from the (still available) source: osx2x Mac OS 10.4 (Tiger) Universal Binary. I’ve installed that version and it’s working great. My sincere thanks to jamesotron.
Update: Annoyingly, I can’t figure out how to right click when talking to the windows box. That’s a bit annoying.