breed

[Suki Wingy]

I'm thinking you want to look in the herding (pastoral) group and Sporting group. Just to name one, Bouvier des Flandres are very good dogs, a good deal of grooming is required though. Vizslas also come to mind.

[Genny]

What about a collie? They are herding dogs, and are active, but can also be very sweet and calm.

[*iluvskipper*]

well even tho goldens are usually a little bit bigger than what you're looking for, i think that a golden retriever would definately be one to think about