Are you still liking the bike?
I too just recently purchased a used Trek. I found a super clean 2005 7300 FX for $160.00. It's an older bike but I've been out for a couple of 10mi rides and so far things are going well. I did bring it by my LBS and have them look things over and and they said that it was a good buy so that always makes you feel better. I'm hoping to ride this one for a little while and the maybe upgrade to a newer bike, either a Trek Fx or maybe the Giant Escape.
Anyway just checking to see if you're still happy with the used bike purchase.
Thanks