As obvious as it sounds, I strongly recommend shopping at a specialty bike store. They are the experts, and they will be able to help you decide which bike is best for you.
“If you're a manager you can't get frustrated and be emotional. You have to continue to steer the ship, you can't let go of the wheel because who knows where it will go then.”
“Brethren, it is easier to declaim against a thousand sins of others, than to mortify one sin in ourselves.”