I bought a Trek hybrid for my first bike. I'm 6ft tall with a 34 inch inseam and bought a 22.5 inch frame. You need an inch or two clearance between your crotch and the cross tube when standing on the ground. Depending on your inseam you might even need a 25 inch frame.

Depending on what type of riding your going to do, you might consider a mountain bike. Preferably with a fork you can lock out. I'm selling my 7200 and getting a mountain bike because I don't like the fork. Also, the Trek hybrids are heavy bikes. With a mountain bike you'd most likely need a 21 inch frame.