Apple has released a gadget to be able to view movies from iTunes, of course downloaded to your Apple computer, on your TV. The piece is called AppleTV [1]. What's interesting about it is that the machine has been hacked so that Mac OSX 10.4.8 can be run on the machine. The site www.appletvhacks.net [2] has the whole story. As one can run an ordinary Mac OSX system on the AppleTV new opportunities arise..
If you prefer a clean install of Mac OSX on an ordinary Intel/AMD machine one can follow this guide [3] at profit42.com instead. For dual boot with Vista and Mac OSX go for this guideline [4].