Well, for me, i used my second PC so i could get familiar with Linux and what not. Also, more recently, my main rig, and gaming rig died, so i kinda had a change of heart and decided to turn it into something like a media PC. On that, i don't know your budget, but if you want it to be a proper HTPC, then your going to have to put some money into to. Then again, i don't really know how you feel about high definition, as well, i don't know where AMD/ATI is on this, but only 8 series and up support HDCP, so that is something to consider. As well, your obviously going to need a lot of storage space, so adding HDDs. On a final note, i run F@H as well as doing everything else no problems.