I know that the noise issue with the new imacs has been discussed to some extent on this forum, but I wanted to see if anyone could help me out with a more specific question. Basically, I just purchased a 20" core 2 imac, and the noise from my machine is a bit more than I had expected- nothing crazy, but a constant hum/whirring that I am assuming is the fan or hard drive (definitely not the power supply). I've seen other people here describe their imacs as almost silent. I guess I was just wondering what exactly that would mean- my point of reference is my old 500mhz G3 imac, so i'm not sure what this new one is suppoosed to sound like. In my case, if I'm standing about 5 feet away I can still hear the noise. Anyway, any help would be greatly appreciated- i'm just trying to figure out if it's worth bringing in to the apple store, or if i'm just nuts. Thanks in advance- this is my first post here, I certainly hope to return the favor in the future.