Just wanted to post since it was this thread and reading all of your stories that inspired me to sign up! I only signed up a little over two weeks ago, which didn't give me that much training time, but I can easily walk three miles so I'll walk when I need to. I increased my running time after I signed up, but then started having back pain (after, not during my runs). My chiropractor thinks I should walk it; but yesterday couldn't help myself and ran part of the time anyways. She was able to adjust me so it's not too bad, but I am trying to accept that maybe I'm one of those people who shouldn't run b/c my back can't take the pounding (which is hard to do). Anyhow, looking forward to it whether I walk or run (or both), I'll still be happy to have accomplished something new. Thanks to Jeff, who has already given me some pointers, and any others are welcome!