I have a Shuttle system which I was just about to throw SageTV onto and then let it run my recordings for the week while I'm away, and while waiting for replacement parts. Not ideal, but I think I can get it set up quickly, since it's mostly just installing the PVR software and the drivers for one capture card.

Most of my media is on a RAID0 box, which does get me thinking that I should likely have some redundancy in the hardware as well. I'm tempted to have a spare identical motherboard and RAM for this such issue.