Photographer Jim wrote:
I have been using the Acratech Ultimate GP ballhead for a few years now, and love it. Weighs less than a pound, will easily hold my Canon body with 100-400 telephoto in any position with no creep, and without a need to "crank it down". Extremely easy to keep clean. For my needs, I don't think I could find a tripod head from the past that would beat it.