Hey Tom, was Scott Weyburn your instructor?
I'm not really sure if I should post here because I'm more than a little biased. But I'm going to anyway.

My company partners with Applied Quality Systems (AQS) to teach these lead auditor courses. ASQ has chosen AQS for quite a few years as their preferred training provider for thier ISO 9001 and ISO 14001 lead auditor courses. I've been teaching AQS courses for ASQ, AQS, and AXEON for a couple of years, and really feel like their material is top notch. Oh, and their instructors aren't too bad either.