With the MLU, an RB or RZ has a very gentle shutter release. You don't need to go too heavy duty, even though the cameras are a bit big. I'd get a good solid head, like a 3047, and worry less about the legs; almost any set of quality legs will do. I would also buy used. Tripods depreciate greatly, and quickly. I got each of my Bogens (3036 and 3051, the really solid ones) wit 3047 heads in near mint condition for under $200 each. That is about 30 percent of their new prices with heads. If you buy used, maybe something lighter, like a 3030 or 3021, which are easy to carry, you are looking at spending probably under $150.