Cullmann High Load Magnesit Ball Head 25
Highly recommended by me!
I bought both the 25 and the 35nm and love them.
They are top rated at bang for buck in a Swedish mag Pro photography
(Proffsfoto in swedish) and in a web review at
The only thing you may consider is to get a quick release for the 25 as this
is not included in the standard setup.
Regards/Diy freak :0)