Couple of considerations, you have outlined how you will use it, how will you transport it and to where. Primarily backpacking or from the car or ATV?
The Bogen mentioned above is great if you don't mind hauling around 6+ lbs.
The most versatile and cost effective tripod I have found for binos and spotting scopes is the Vanguard Alta 224CP 4 Section Ultra-Lightweight Carbon Fiber Tripod With Panhead. I use it for digiscoping, just spotting or with binos. The maximum weight capacity on this tripod handles those applications very well. You can pick one up right now on buy.com for $209 shipped. This is a very capable 2.8 lbs ultralight with max height, min folded length, weight and weight capacity that stacks up against the gitzo and other ultralight carbon fibers that will cost $500+ with head.
If backpacking is your game this is the best tripod value out there by a large margin!!!
Good luck,