Jamie, it's a "sprint" (=mini) triathlon locally here in Carmel, IN. It's a 400 meter swim, 10 mile bike ride, and 5k run. I heard that Indy actually has some other sprint triathlons so I might sign up for more than one next summer. The one I'm doing is specifically designed for beginners, so the swim is in a pool, there are no time limits, etc. They even have separate prizes for first-timers! If you want the info about it PM me and I'll send you a link.
Robsia - I know what you mean about things hurting when you don't use them! My knees hurt more after sitting at my desk all day than they do after working out. :P