This was my project today. I picked up this 1.83 GHz Core 2 Duo Mac Mini with 1.5GB of RAM from Craigslist, and today replaced my hacked Apple TV with it. I'm running the great Plex software, and so far the whole user experience is fantastic. These Minis are great little machines! More info and pictures in a quick post on my blog. I'm lovin' it.