About to pull the trigger on a 430 ex II for my 50d and a 77mm B+W polarizer filter at B&H. I'm thinking about getting a high quality tripod. I made the mistake and purchased a cheap sunpak tripod a few months ago and it is horribly unstable. I'm looking for a really good ball mount tripod that support my biggest lens Sigma 170-500 telephoto. What are the benefits of getting an all-in-one ball mount tripod solution vs buying the ball head and tripod separately? Carbon fiber worth the money? I heard Manfrotto is good but want to get an idea of what OTAP photogs are using.