Agree with the previous post. I have a Vizsla- my first hunting dog. I referenced the breeder and felt good about them and the quality of dog. My dog is going to be 9 and I have nothing but good things to say about my dog and the breeder - they were phenomenal in terms of support.
I went to seminars, read books etc. The most helpful resource I found for my dog ( a pointing breed) was George Hickox's tapes on bird dogs. However, I will also tell you that I ended up using a hodge podge of techniques to train my dog. No one system will necessarily work for you and each expert has good techniques that you may find helpful.
Bottom line is that we ( my son who is now 13 and I ) were able to train our dog living in an urban area and now have an accomplished gun dog with both Junior and Senior Hunter titles and several field test ribbons. Most of all, we have a great family pet that is a joy to hunt over or to spend time with at home.
If we can do it , so can you. Patience is the key. good luck.