We love our Madan pin brushes from Jenny at
www.toplinepet.com
Madan also has a mustache/leg comb and a rat tail comb that are big tools in our grooming arsenal.
In addition, I like the Isinis brush:
Amazon.com: ISINIS Large Cushioned Hair Brush...
We also use wood pin, boar bristle, and the Les Pooches finishing brush. (these are when I am feeling up for extra work).