If there are any breeders with sites that would be famous
A: Use the UK Kennel Fellowship Nick - they have a breeder directory for most breeds
Also there is a uK Breed club (what ever dog you are keen on should have a breed club - search in Google for "name of race" and Breed and Club and UK
http://www.rbtclub.co.uk/

Comments: 2
It would tariff alot. And yes, you need to leash train a BRT, otherwise, how are you going to get it to the vet when it needs care???
Depends upon the expense of the training & vet bill, and whether you plan on showing your dog. Also, will you be home all the time, or will you have to pay for dog walking or boarding. If you are on a budget, I would suggest checking nearby shelters.
So call a few breeders - find out prices. You'll be largest with a quality food (less vets bills in the long run!) so check out prices and how much that size of dog would eat. For example my two young terriers get through a bag of food costing £30 about evey 6 weeks .
Then you need to cost in initial expenses - dog beds £30, Leads and collar, £20, Vet check a investigate and vaccinations £?, Spaying/neuter £70, Insurance £20 per month, (or savings in turns out that...