If you're looking for book suggestions, I'd recommend "Growing Object-Oriented Software, Guided By Tests" by Steve Freeman and Nat Pryce. It's pretty pragmatic, and the treatment of the subject is pretty thought-provoking (at least, I thought so when I read it).
The examples are all Java, but the accompanying website (http://www.growing-object-oriented-software.com/) has links to reimplementations in several other languages.
Interesting TDD argument. I'll buy a book or something and try again when my present hobby project is done and I have time for experimenting.
(IDE refactoring needs a stricter language than I prefer. Also, without an IDE and using my old eyes I have 2 A4 of code + 1 A4 of bash on a 24" monitor...)