I have CA's DVD's on training newborns weanling's and yearling's(I think that's what its called) I used it for all 3 of my baby's and they have turned out great so far
I've only seen him in person once and that was at an expo not a clinic type atmosphere. He is very easy to follow and a good teacher.
I think many of them are teaching the same thing, just chose one who you like and can understand and follow.
Check for used vids on Ebay
and craigslist. For the best prices.
I saw Craig Cameron this weekend at a horse expo. He was doing a colt starting clinic. I found him very easy to follow as well, and full of great information.