I'm getting ready to build a new HTPC, and keep going back and forth as to whether to buy an aftermarket CPU cooler or to just use the stock one that comes with the processor. My biggest concern is noise since the PC will be left on most, if not all, of the time. I've seen measurements of how loud the stock fan is in db, but unfortunately I don't have a good enough handle on things to know exactly how loud something like 48db will be. What I do have however is an xbox 360 and a ps3, so I know exactly how loud those can get. If the stock AMD cooler installed in a Silverstone GD05B case will be no louder than either of those consoles, then I think I'll stick with the stock cooler.