If you read the previous post, you saw Joel Sartore mentioned. While I could not find the episode of National Geographic Explorer that featured Joel in Alaska and lambasting the REI store for some of their bear protection merchandise (if you find it, watch it, it’s some of the funniest television I’ve ever seen), this clip from Geographic features Joel and you get an indication of his humor and his passion.
You can get prints of his photos at: http://www.joelsartore.com
Give him some business. He’s a contributing photog to NatGeo, but freelances as well and he’s just a good guy.