Good for you! Last year a coworker and riding partner talked my husband and I into training for a triathlon. We had 5 months to train. I didn't know how to swim, was afraid of the water and hadn't ran in 10 years. We started with reading everything on the internet we could find and I used the TE forum for motivation and guidance. There are a lot of experienced ladies here that offer loads of advice and support. I took swimming lessons and trained hard. I had 3 goals: I wanted to finish, I wanted to do it under 2 hours and I didn't want to be last. Five months later I achieved those goals and had a great time. It was a lot of fun. You will enjoy this too. I would recommend going to a good sport shoe store and get fitted for a good pair of running shoes. Start a training journal and write down what you do every day and your times. It's encouraging to go back and read how far you have come when you hit a slump. You should be able to find training programs for duathlons on the internet. Try bicycling.com, runnersworld.com, or beginnertriathlete.com. Good luck!