Go for a tripod that's practical, I have quite a few Manfrotto, Slik etc as well as a very heavy duty one that would atke a broadcast TV camera or 35mm Cine camera, but I've just bought a small Slik Sprint Pro 2 (II) GM Tripod because it's far more portable and will fit inside my backpack.
While the Slik Sprint is marketed as a Digital tripod it will carry up to 63lbs/28kg, and is remarkably well made, I've never liked ball heads before but this one is excellent, Calumet are selling what looks like exactly the same tripod under their own name with a three way head. It easily carries my TLR's as well as my 5x4 cameras, perhaps there's a very slight sacrifice in rigidity but with leaf shutters there's no loss of sharpness and the increased portability is important as I often have to carry a tripod & camera's all day while travelling.
Ian