your story sounds a bit similar to mine. i started jogging to lose some weight, and did, but then my knee started aching really bad. so i started riding an exercise bike in the winter and decided in the summer it would be better to ride a real bike outside. i love it. i ride whenever i can, to friends houses, the grocery store, library, etc. i hate driving now, but occasionally i still do, and banzai's is right, the days i have to drive just bum me out. anyway, congratulations to you and your wife! keep up the good work!