I've never been a bike enthusiast, but this summer i'm going on a ride across the united states. I don't know much about bikes, but suddenly need one. What would you recommend? should it be new or used? i don't have more than $700 to spend on it. If i could get a new 2007 trek 1.5 or 2.1 in that price range should i, or should i find something on ebay?
If you can't tell i don't know a ton...please remember that when answering=)