Dan Mitchell says his equipment measures up.
Lenses: I try not to succumb to Lens Fever, so I use a small set of good Canon lenses: EF 17-40mm f/4 L, EF 24-105mm f/4 IS L, EF 70-200mm f/4 L, and 50mm f/1.4. While I may take all four on some hikes, more often I take a subset. On pack trips where weight becomes a significant issue I may take only the 17-40mm and the 24-105mm lenses.
Actually, Dan has a nice description of a serious shutterbug’s outdoor photography set-up. I’m too lazy to set up my Gorillapod, but those of you with ambition will have some good points for comparison.