I just saw one of these on Craigslist, and am going to look at it today. (I've been wanting another bike sort of in-between my road bike and my really heavy utility bike.)
I don't know much about that bike other than that it's an early Trek hybrid. If it's in decent shape, does anyone have an idea of what would be a fair price for it?
EDIT: Oops! I meant to type Trek 720, not 520.