I'm considering getting cable TV again, and it might be nice to build a PC around the new Ceton quad-tuner card. I've never used the DVR functionality of Windows Media Center, but it would be really handy if I do decide to stick with cable. However, since I don't always want my main PC to be on, it would be nice to have a PC with less power draw but more storage (for DVR, and maybe I'll back up my main PC's data to it as well?) as an always-on device. Some of you have a lot more experience with this sort of thing, so I'll defer to your expertise. How would you build this PC, or what would you do instead of build this PC? Thanks for any feedback you have.