Tripod

As we get closer to the trip, only 55 days, not that I am counting. I keeping adding to the equipment list, I just got a 55-200mm lens to add to the toy chest. Now as I think about it I am considering getting either a monopod or tripod which needs to be stable to carry my camera and also lightweight. Now comes the dilemma, there are so many choices and I am getting sore eyes reading all the reviews and am still confused what would work best. My main concern is something compact which will hold the camera without shake. Looking for 2 lbs or less, eye height when extended and folded size under 20″ for easier packing. Chances are I will have to look at Carbon Fibre for the weight and stability but this still leaves me trying to decide whether I get a tripod or a monopod. Anyone have any suggestions? Oh my camera is the Canon Rebel XTI and my biggest lens is the Canon 17-85mm USM IS.

Suggestions please!