Hi. I have done this, and it was one of the most fun installs I have done.
This link may get you going.
AVS Forum HTPC section. Absolutely superb reading especially if you are using a HDTV.
http://www.avsforum.com/avs-vb/forum...?s=&forumid=26
I use Snapstream as my PVR also. It is actually very good.