This question has probably been answered before. I might have even been the one that asked it, but since I can't remember anything here goes again. I am building a new PC. It's your standard 3000+ Athlon64, 256MB Video card and such. A nice system that will let me do pretty much anything I want but one if the big things I also want to do with it is watch movies. I will be turning this into a HTPC in the future so if I can buy smart now, it will save me alot of problems in the future. Question is, Why a HTPC? I know that sounds weird, but what purpose does one serve? You still have your receiver, speakers, and TV. So other than controling your DVD, why? I have my PVR built into my DirecTV so that parts taken care of. I have read how a HTPC can control a multi-DVD changer and catalog your dics. That would be very very cool but how do you incorporate the HTPC into your Home Theatre setup? Does it just take up an input on the receiever? How is it controled? How do you tie a remote into the HTPC and which remote does the job the best (I've read good things about Harmony). So if someone could point me in the direction of how your put a HTPC in a system setup and what exactly a HTPC can do, that would seriously help. One other question, which case do you go with? I saw the link about Ahanix but what about air flow and power requirements. Is a 350W big enough and how do you control the air if the case is fairly closed in? Last thing I want is to turn my new PC into a radient heater for the room! Thanks for the help.