I thought I would finally post something here about what I have done with the amazing little device the Raspberry PI. If anyone is unfamiliar with this cool little device, it is a credit card sized computer that runs off a SD card. I have 9 of them now. 7 are running Raspbmc (http://www.raspbmc.com/) which is a custom OS built off of XBMC (http://xbmc.org/). XBMC is a great little piece of software for media centers.
There is no end to the projects that you can do with these things. Some of my future ones involve a custom video phone out of an old pay phone. A front door camera with a small LCD panel and side cameras. As I get into those projects I will post some pictures and how I did it.
You can order your own Raspberry PI from here http://www.element14.com/community/community/raspberry-pi?ICID=hp-raspberrypi-topgroups
Have fun!