Bargain tripod
I strongly advise you, to have a good read up on what Thom Hogan's and the Luminous Landscape sites have to offer about tripods and ball heads.
I am not so much into tripod photography, but have an approach of getting the best for the smallest money, when venturing in something new.
After checking out the possibilities, I ended up with these legs:
Velbon Geo N630
Here is an older review on the Luminous Landscape site of the model (it has now some slight improvements over the reviewed model)
Here is another review, I just googled.
The Velbon 630 is a carbon fibre tripod with several versions (I have the Geo N630, which has twist locks opposed to clamps, a removable aluminium center post and adjustable gum feet/ metal spikes).
It costs half the price of a comparable Gitzo and 25 % less than a Bogen.
I even use a Nikon D3 + 300 VR + TC20 on it, which is a pretty heavy combo.
If you are on a budget and can't afford it, to buy an excellent set of legs and ball head, I advice, to get the best legs, you can afford (the Velbon is pretty good) and the cheapest, but stable ball head (don't buy the mini versions).
You will be fighting with the ballhead (setting creep, not smooth, hurting fingers,
) but you get better photos with a stable combo and a lesser comfortable head first.
I bought a Markins M10 head for my Velbon, which is just fine and makes a good light combo.
The tripod goes for just over 200,- USD.
Usually a good tripod and ball head goes near the 1000,- USD, if you buy the best. Don't look at the sub 100 USD range for the legs - you will regret the buy, if you step up later (
Thom Hogans writeup on saving money on support systems is spot on - highly recommended read!).