Tom,
Nothing against trainers, but it is a lot more rewarding to do the training yourself. I had very little experience when I started with my Britney years ago. She turned out great and I can't wait to training another pup in a few more years. I have friends who have used professional gun dog trainers with very mixed results, some very good, some very bad. The bottom line is it comes down to the time you spend with the dog. If you don't put a lot of time into the training you can't expect a good dog to come out of it.
I learned everything I needed from one video "The Complete Pointing Dog" by Harold Adams. I think I ordered the video from Cabela's, but it was quite a few years back. I still have mine if you don't have any luck finding it.