Mr. Miscavige is an excellent speaker and I've seen this presentation a number of times, and have shown it to friends to give them more understanding of why I am so passionate about Scientology.
Anyone who wants to see this DVD can go into a Scientology church of mission and ask to see it. It is called "This is Scientology".
It can also be purchased through the Scientology bookstore at www.scientology.org
Here are a few blogs about David Miscavige which I haven't seen before:
The David Miscavige blog-city blog
The David Miscavige Blogigo.co.uk blog
The David Miscavige Blogsource blog