I don't get these people who have RRODs frequently. I have one of the last launch 360s (couldn't wait for the HDMI to hit the Pro model back then) and the only overheating problem I've ever had was when I had my HD DVD adapter (I know, I'm full of impatience) sitting on top of it and the adapter overheated a couple of times when it wasn't even doing anything.
Yes, it gets really hot and its really loud, but I've never had a problem with it. I do only play it a couple times a week, if that.
Watch, I'll get home and play it tonight and it will overheat...