It's been a back burner idea for a couple years after I first learned about it. I still have the parts for my computer from last year (2.8ghz P4, 1gig ram, FX5900XT, 3-4 spare HD's). I didn't in the past because of having the need to buy a high end capture card and that lack of a spare ATX case. After that while, I finally got a hold of an ATX case, so the plans are back on the table, though it is #2 on my list of 'What can I waste my money on without letting my wife know how much I spent' behind a FreeTrack setup.
I searched the forum and saw last year Chairboy was thinking about it etc., but wondering if he or anyone else has successfully completed one. I don't need HD recording, but the extra parts I have around, should be sufficient to doing what I want as a DVR.
For those of you who don't know what it is:
http://www.mythtv.org/