Just wondering if you could answer a question about a purchase I was thinking about making. I am interested in two bikes, a Trek 820 (steel frame) and a Trek 3700 (aluminum frame) Which of the two would you recomend? From what I've read they are essentialy the same bike, the only difference being the frames. I understand the steel frames are very ruged and give a smooth ride although obviously the alumininum is lighter. For the way I'm planning to ride (mostly smooth trails, 30 miles or less) which do you prefer for the price? Considering that I am trying to stay within my budget, do you see one as being better than the other? I like the ride and durability of the cheeper steel model, but do you see the extra $60 worth it for the aluminum? Also, in your opinion is the lighter aluminum better for going longer distances? That is to say, can you pedal it easier with less fatigue at higher speed over longer distances? Any information you can provide is most appreciated.