I second the recommendation for Jenny -
www.toplinepet.com
She will be more than happy to advise you on which Madan brush to get.
I would be totally lost without my Madan brushes and combs.
(I was without the grooming comb for a week, as the groomer took it home with her one day by mistake after grooming Beamer, and it was H E double hockey sticks! not having the comb, had to use the small mustache comb until the groomer came back the following week.)