Art,

If you want good, keep away from John McKenna's course unless you want a basic intro.

ITC, Infraspection, The Snell Group have what your looking for.

Consider joining the group at:
http://www.your-leaking-house.com/si...use.com/forum/

if you do not want to be flooded with BS.

There are several extremely qualified as well as learning folks there.

I have a link to Infrspection here:
http://www.thermalimagingscan.com/In...r-Training.htm

I have taken Building Science, Lvl I and Lvl II at Flir/ITC.
They are qualified. It is a certification that expires and requires continuing education to remain "Certified"

John will give you a piece of paper for $500, calling you "certified" that's the end of it.

Call and talk to these companies.