What makes HTPC different from your run-of-the-mill desktop computer?  It's designed from the ground up to meet the key specifications that users have found the most desirable:

Plug and go simplicity give you more time to enjoy your movies.  Best of all, it's all assembled in the best looking cases that imposes the least amount of limitations.   

Home Theater PC FAQ

Your projector is on order, and your room is wired for sound.  You've tossed around various ideas for your video needs, and you're now considering a Home Theater PC (HTPC).  What next?  Whether you build your own or have us custom build your system, a little homework is in order.  Here's a good place to start on what's new and available today.

Home Theater PC (HTPC) FAQs
Progressive Scan DVD playback
HDTV Decoder for your PC
Digital Displays and Front Projectors