Well, the continuing search for a bike for my father has lead me to
THIS BIKE.
It's a Trek 2120. Looks interesting. I think the seller is out of his mind asking $525. I'd put in an offer for $350 but really don't think it's worth much more than that depending on components.
I just want to be sure there aren't any known problems with them. I've heard that the first run of Specialized Allez Epics had to be recalled because of some problem with bonding in the lugs or some such. So I just wanted to be sure there are no problems to worry about with this Trek.