Show Border Collies who work? General Chat

I have a friend of a friend who is looking for a show line border collie but who would still be capable of doing a bit of sheep work.

Does anyone know of any breeders of the showline dogs who also work their dogs on sheep? If so, any links or websites would be much appreciated.

Thanks.

I know the Broadhursts work theirs - Thistlemist and Rosehurst

Thanks Julie - will pass that info on.