I am planning to purchase a new bike - to replace my old Trek 800 (1986 model ). I really like the Cannondale C400 (a "comfort" bike - kind of a hybrid), or even more the Silk Trail 400. The C400 is about $550, the ST400 is probably close to $800. I feel like I am betraying my old Trek - I've always felt that Trek made awesome bikes. But I really like the feel and the look of this Cannondale, and I don't see anything in the new line of Treks that rings my bell. So can I get some of your opinions out there? I have no prior experience with Cannondale, so I value your input.