Don't wait!! Find one that suits your fancy and sign up!! I spent a good 6 months on the fence while I tried to become a better swimmer. Finally I just signed up and it was the best thing I ever did! It was hard to take the plunge, esp. since I'm a weak swimmer, but I'm so glad I took the leap. It really has changed my life. And the funny thing... I've yet to meet one person who "tried" a tri and didn't become hooked! They are soo fun! Plus the three discplines mean there is always another workout you can do if you don't feel like doing the one originally planned. No single sport burnout is the biggest plus IMO.