yup, I feel the same way. Not only does the way of eating make sense, but I think Mark's really got his head screwed on right wrt movement and exercise. It's given me the same kind of revelation feeling I got when I read The Selfish Gene when I was 16. Just makes so much sense I can't understand why everyone I know isn't doing this!
Thankfully I've been able to share my enthusiasm with my brother and so the rest of my friends have been spared too much of my metabolic techno-babble. Welcome aboard, I hope your primal journey goes well.