Whether you go for a particular tripod or not, what I have found is that good gear lasts longer, not only in terms of durability, but also in the desire to be used. I still am using the carbon fiber tripod I bought around 1998, see above. It was expensive then. I started with a different ball head, but adequate. About six years ago, I picked up the Arca Swiss p0. I am not looking for anything else--despite the attempts at seduction by my "friends" here at GetDPI.
I am sure they are not laughing at me, but with me...
(Right???)