A few people have commented on DHs in recent months on the forum. This breeder is planning a litter for February 2013. I don't know anything about the breeders though - so buyer beware http://www.workingdogsuk.co.uk/puppies.html
I wonder how long they have had them? The male is two years old and the pups are over a year old. No details on the dam and the link I clicked for the sire came up with a GSD.
Looking through the site, there is little information on any of the specific dogs the breeder has - including pedigree etc. Rather dodgy ... perhaps the Mods should delete this thread! LOL