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.
“I'm a survivor of life. I try to give the glory to God and appreciate what's happening to me.”
“When you step on the treadmill, make a commitment. Do, say, 3 miles a day. And don't get off until you finish. It doesn't matter what speed you're going. Just don't get off.”