I'm looking to get my fatass in shape, and looking to buy a hybrid--I want to ride mostly on streets, but also be able to ride town lake type trails. Anyone know anything about the GT Nomad? I have a chance to buy a 2009 series like new for 300--retails for about 450-500 I think. It appears to be my size, although I assume it would be worthwhile to take it to a bike shop to get it "fit", correct?