Jacques,
Congrats on branching out into the world of multi-sports!!! You will have a blast and since it sounds like you have a solid running background you will do great. Here are a couple good websites to get you started:
http://www.beginnertriathlete.com/default.asp
http://www.tri-ecoach.com/art30.htm
http://www.tritalk.co.uk/training/articles.php
http://www.trinewbies.com/
Do you have a certain distance or race that you are looking to compete in?
Jim