I've heard some good things about Brett Jones' dvd "Kettlebell Basics for Strength Coaches and Personal Trainers."
I started with the original "Russian Kettlebell Challenge" on VHS ::gasp:: and Maxwell's "Cruel & Unusual Exercises For Real Men", also on videotape. ::double gasp::
Interesting that he's still selling it at Dragondoor, then. Truthfully, it looks interesting, but I think half of it isn't anything you couldn't figure out on your own. What was it that John Davies said in an interview here, something like "Buy me a cup of coffee, and I'll teach you everything you need to know about kettlebells in 10 minutes."