Similar to the Manfrotto 055CXPRO3, I've got the Vanguard AltaPro 183CT.
Basically the same tripod, both carbon fibre, both about the same height packed and standing (within 5cm or so), same weight, same carrying capacity, same price (give or take $30 at B+H when I bought mine).
Main difference is that the Manfrotto only goes straight up, straight down, or 90 degrees, the Vanguard goes anywhere in between (and you can tighten an allen-key they give you to lock it in place for extra load capacity.
There a pic in my sig of my tripod (you can't quite see it, only one leg and the column tilting down, I've got an AcraSwiss Monoball P0 and Kirk A-S clamps to my 7D), or here's a better pic of theirs:
Also, there's a pic of my macro kit and bellows, halfway down page 52 of this thread