So I've been shooting with a Canon 5D and a few basic lenses for a long time now, sort of recreationally, selling photos when I can, but never doing the whole professional thing. Never carried a flash, or a tripod, or anything else. Just upgraded to the Canon 5D Mark III (amazon has a good deal today, for $2699), and thought, with the money I saved, I should get a tripod.
Problem is I don't know where to start. I've heard Carbon Fibre is better than aluminum, at least as far as weight is concerned (big issue for me), so I think I'd like to go that route. But I see tripods from as little as $100 to as much as $500, or more, then the ball head, which is sometimes included and sometimes isn't, which can add hundreds more. In other words, I have no idea what to buy.
What I want to do is more low-light photography and, now that I have video capabilities, high-def video as well. Things like time lapse, etc. Do I "need" the best tripod? Or will a cheaper one do?