+1 regarding many positive aspects of Thom. I don't fully agree with a small part of his advice for Nikon corp and one small aspect of his shooting advice, but the majority of his writings I do agree and find educational and thought provoking. I have emailed him at least a dozen times over the years and he has replied cogently each and every time. In my case, he was also instrumental in affirming a D4 purchase based on my Theatre needs and after shooting (and owning) both that and a D800E in Theatre, I believe his guidance to me was correct. The D4 purchase was a major undertaking for me and not a decision I took lightly!
I recently bought his D800 ebook (1.05) and have been poring through it, learned many things already and highly recommend!