I am a beginner in the wonderful world of cycling and need YOUR help! I want to purchase a bike, however, am unfamiliar with the logistics. I want the bike for the purpose of exercising right now. I will get into the pro stuff once I am in shape. A friend knows someone with the Royce Union Seismic Pro 24 3783BX 21-Speed for sale. Can anyone give me any inforamtion on this bike? And, what would be the most anyone would pay for it? Any information would be greatly appreciated!