Anything by Michael Ellis will be worth the money. The problem with videos is that you don't always learn the reason why the training is being done a certain way and you don't get feedback about tweaking an approach for your individual dog, or why another approach might work better. But Ellis is a very good teacher and usually explains why he is doing what he is doing. Finding a good club with good helpers is the best way to go, but they are few and far between. IMO, there is a lot of poor training in the states.