I'm a big guy. (6'2" 315lb) and I need a recommendation for a good bicycle. I'd like to begin bicycling for leisure/fitness. I've done some research and feel like a hybrid would meet my needs. I've never spent more than $150 on a bicycle, and am thinking that is why I've never stuck with it. I've been looking at Trek FX models, and would like to stay around 500 or less. I may go higher if it would be worthwhile, but not sure where to start. Please help!