If you are interested in TDD but don't quite know how or where to get started join Jon Dowdle (http://jdowdle.com/wp/) and myself at the Online ColdFusion User Group this Thursday 10/21/2010.
I'll be covering Unit Testing basics, Test Driven Development basics, and to finish John and I both be doing a live coding demonstration solving a simple TDD Kata problem. I hope to see you there!
http://www.meetup.com/coldfusionmeetup/calendar/15165569/