Thanks for the links and replies. I'll be checking out the links. Zen, I am so too young for arthritis!! (Not really, but that's my story and I'm sticking to it). Someone mentioned a good seat - I did purchase a Terry seat shortly after I got my bike, which has helped a lot. I'll definitely look into the clipless pedals (I'm not even sure what those are) and see if maybe that will make a difference. I'll also be looking into these rollers, although they sound kind of scary.