I really, truly believe this deserves its own thread. Yes, the 2012 iMac design sacrifices some things to achieve that thin edge, but its cooling is not one of them. I had a 2009 i7 27" iMac, and that thing ran warm. The top of it would be a toaster oven whether busy or idling. It was baking hot. By comparison I've been using my loaded 2012 iMac (i7/32GB RAM/Geforce 680MX) all evening and the thing is actually cold everywhere. Right, it's not lukewarm - it's COLD. Whether you love or hate the new design, there's no question Apple has the temperature issue addressed with this 2012 model. Bravo, Apple. Bravo.