My 360 never even RROD'd on me. The graphics were going haywire. To mention; when I had the case open I noticed charcoal color grill marks at the bottom of the disk drive, so it was definitely running hot. On another note; I did call 1800-4MY-XBOX (the help line or whatever), and they wanted to charge me $128 bucks to send it out. This was... Two or three months ago. Plus another $20 to renew my warranty???
Anyways it's running fine now. Ran Fallout for a good six hours on my last day off from work without issues.