Well, the rear Derailleur wasn't shifting right(the LBS adjusted the cable a few weeks ago btw) so I decided to take it into the LBS to have it checked and adjusted again. I let the tech know what was going on and he said he could do it then. Since reading this thread about chain life, I had him check that as well. The tech stated that it was still good, but I should think about changing it out very soon(within the next few hundred miles). I asked if it would be an issue for him to do it while I was there and he said it wouldn't be a problem. Anyway, I was talking to the owner and he was actually surprised that I got 6200 miles out of the chain and still had some miles left. The tech did discover one reason why my rear shifter wasn't shifting efficiently--the cable was being held together by only 3 strands of wire at the brifter out of the all the strands in the cable! Needless to say, I had him replace that as well.