It seems like everytime I have had a baby (3 times now) I have completely quit excersizing, and packed on close to 80 lbs. After the babies were born I would ALWAYS use the Couch to 5k plan on Coolrunning.com. I just finished my first marathon in WDW this year. Granted, due to the heat it wasn't the time I thought it would be, but I finished a marathon. My husband was so shocked and excited that I finished that he has now started doing the Couch to 5k and plans to run WDW in 2008. I run every run with him and he just finished week 1. Just wanted to let you know, it does work and the fact that you are up and moving and doing something at all is so much better than most people out there. Come join us in the Events and Competition sub board. That's where we all get together to talk about our daily runs, excersize, races, etc... and give each other a ton of support.
Take Care,
Dana