I have been riding mountain bikes up until this point and am getting ready to purchase a road bike. I had no idea that there were so many to choose from and how much you can spend on one. After doing some shopping I have decided to possibly purchase a used 2004 Lemond Nevada City. The bike is going to need a tune up and probably two new tires as it hasn't been rode in a while, but the bike is in good condition other than that. What do you feel is a fair market price for this bike as I don't want to overpay or insult the owner? It was purchased for $700 new. I would appreciate any advice you may have. Thanks.