Steve Lewis comes to mind since he was mentioned earlier.
Steve was one of my advisors on the project. I'm not a tech expert so when I ran into questions while working on the documentary and the book I would ask people like Steve to help me out. He's an amazing instructor as well, according to friends of mine who have taken courses with him. And he's a great guy to have a beer or two with. We spent a week together while he was diving and I was filming in the mines of Bell Island.
http://www.dambuilderproductions.com/other-projects/mine-quest.html