Do the health issues stem from being in front of a computer, or sitting at the computer? Even if you transition over to a career as a bike messenger[1], the odds are pretty good that an alternative career will require you to spend a significant amount of time sitting, either in conference rooms or in front of a computer. Although I have yet to take the plunge, I hear nothing but good things from people who have trans…
Bike seats are pretty hard on penises, though. Google "penis and bike seats" for a ton of articles (including some interesting specialty bike seats to alleviate the problems).