I randomly check ebay from time to time to find a deal, but I think most people are overpaying for used bikes there. A piece of advice for you for your forum future. It always is helpful to have as part of your profile where you are located. Often people are from the same area and can give great advice like, "Hey were in the same city Check out this specific shop 30 minutes from you they can help you out." I'd also peruse craigslist if I were you.