
this is a popular breed much exploited by puppy farmers.
To ensure you find a reputable breeder I would get in touch wih your nearest regional club secretary, and the natuional breed club sec. You can get their deatils from the KC Tel. 0870 606 6750.
they will probably know who has or is planning a litter, and may also be aware of some of the not so ethical breeders/dealers in your area, for you to avoid.
Hope that helps as a starting point.