http://www.lifehacker.com/software/m...ter-214393.php
Build a Mac media center
For those of you who just can't wait for Apple's new iTV to come along, web site Informit describes a few methods for turning your regular Mac into a Mac media center.
The article makes a compelling argument for taking this route over waiting for an iTV, namely that it's more flexible, potentially cheaper, and available now. This is the first article in a 3 part series, so if you're interested in traveling the road to a media center Mac, you should check it out. If you're not into Macs, you might want to consider building your own Windows-based media center and DVR. Adam Pash