I am a documentary addict, and just watched a breathtaking, yet sobering documentary. Should you care, you can see it here: http://www.jamesbalog.com/pages/home.php - click on the "Extreme Ice" then "Watch Online". To be clear, I am not sure if the web version is a neutered version of the TV/broadcast version I just watched, or it is the real deal.
He used Nikons through out the entire program, plus some medium format.
Not a bad way to eek a living.