I'm an outdoor photographer, shooting both action outdoor scenes and wildlife, so most of the time I need to be versatile and moble. For the largest part of this, I use a fairly heavy 200mm f/2.8 and can get good shots with it hand held. A tripod makes everything better, but for most of my shots, there isn't time to fiddle with one, so I'm shopping for a monopod and would like some reccommendations.
Most of the time I would use it simply to stabalize horizontal shots, but I'd also like the option of quickly tilting the camera to vertical.
I am, by the way, only 5 foot, six inches tall.