Caught between three different bike choices the Cannondale Quick carbon 2, the Specialized Sirrus Limited, or the Giant Rapid 2. The Cannondale and Specialized have carbon frames and the Giant has an aluminum frame. Of course the Carbon framed bikes our more expensive. Which one would you get? and why? I could save money with the Giant rapid 2 for 1250 dollars or I could get the others for 2000 dollars. THese our hybrid bikes. Do they still make the Trek 7.9 fx anywhere? That's another one I liked.