You don't have to be a breeder. You can buy a show potential dog from a show breeder if you commit yourself to giving their dog the best chance to win a title. Show breeders will want to have assurance that the dog will have the best chance to a title, so if you don't have any experience in handling, they will probably ask you to get a professionnal handler, or maybe even suggest one of their own. These handlers cost $$$ though. Not all breeders will want to deal with beginners, but I'm sure some would. After all, we all have to start somewhere...