Alright guys with the seemingly unending rises in gas prices and the rather gradual increase in my waist line I have decided time for me to start getting back on a bike. I am currently in the process of losing weight and getting myself more active and back in shape. As I mentioned in the engagement thread it was my now fiances only request before we get married. We will be getting married in the summer of 2012 so I have a good amount of time to kick my butt into decent shape. I have actually lost almost 10 lbs in just over a week just because I have been watching what I'm eating and I am more active, not even really exercising yet.
Anyway back on topic back when I was younger (much younger) I was constantly on my bike and I could ride for hours without getting tired. Once I got a car my time on a bike gradually decreased. The town I live in now would be fairly easy to get around to most places by bike and we even have some nice mountains and wilderness areas one could go as well. I know we have some avid bike riders on the board so I figured I would ask you guys what do you think the best way to get back in the saddle will be without me killing myself by over doing things etc and making it so I don't want to ride anymore?
Also I currently have a rather inexpensive Columbia (built by Iron Horse) mountain bike, aluminum frame, disk brakes and front suspension only. It is a decent enough bike nothing great but good. I think it does need to have things adjusted because as I recall the last time I road it the shifting was a little off. Any good sites for how to properly adjust things?

