I need some help from the people who know what their talking about :)?

Any good books on training for Akita inu, fila brasilerios and rottweilers specifically? I'm gonna buy some books by Dr. Ian dunbar, but I'm widening my idea of training and seeing what it most widely practiced and what works best. I really don't want to instill fear in my dog, but if I need to use negative reinforcement cause its NEEDED I will. Oh and any reputable breeders for these dogs that you know of in Florida, I would greatly appreciate their names and contact info. Thanks!!!