The Colorado Trail Race. It usually doesnt take long to get hooked on something usually to the point of obsessing a little bit over it. I first heard about this race last year, and love the self supported idea. One of the reasons for going to Colorado and doing the Breckinridge race was to see how I would feel just riding there. http://forums.mtbr.com/showthread.php?t=436927
After following it this year it is defenitely something I would love to start training for.