At the geek dinner the other night and in a subsequent conversation with Scott Hanselman it was noted that many people probably have Windows Media Center but don't realize they do. If you have Windows Home Premium or Windows Ultimate then Windows Media Center is ready and waiting for you to give it a try. If you didn't get a tuner with yours, Adam Pash has a post over on LifeHacker titled Turn Your Windows PC into a Media Center Powerhouse On the Cheap which has some details on how to remedy -- and the comments are filled with good information as well.