Kudos to all the newly invested cyclists! If you're in the market for a new bike, I would strongly recommend (as others have) visiting your local bike shop—there, a professional can fit you to a bike that meets your expectations and is consistent with your goals. Fitting is not just about determining frame size; there are many different geometries to consider as well. Try out plenty of different bikes first, then decide which one is right for you.
If you put in the miles and the sweat, you'll be surprised at how quickly your fitness will improve. I became a committed cyclist and runner only about a year ago; now I'm training for a marathon in the fall and a half-ironman triathlon next year. Sometimes the biggest hurdle is just getting out the front door. The road is inviting. Best of luck!
