Achille's Tendon Problems

Well, I may be done with biking for a while. My Achille's tendon problems seem to be clearing up, and I think I am going to try to run another Marathon, or at least a half-marathon.

There are some things things, though, that I need to work on for my bike:
1) I think I need new break pads.
2) I'm not to happy with the new gear shifters that were put on by the bike shop. The chain has come off twice.
3) I think my tires are getting a little worn, and may need to be replaced. I think I'll be adding presta valve tubes this time.