Here are a couple of videos to check out:
A few of my soldiers at JMRC produced this one off a a script that we use in one of our discussions during our level I course:
http://www.youtube.com/watch?v=B-lxbU47pho
The next one is an Interview with SSG Mike Czarnecki, one of our Combatives Instructors when I was at JMRC:
http://www.youtube.com/watch?v=ZCUfmRV89Uo
This one is the intro to MAC-P by Matt Larsen. It is a good one to give you an overview:
http://www.youtube.com/watch?v=qEDkzD0ULKo
Listen carefully to what he is saying, not so much about what is going on as far as technique. The techniques are the very first ones you learn and is not indicative of the complete program.