I have to mostly agree with Chad. Most programs, whether professional or not, are based on one or two different schools. They have just been tweaked for each persons style or dogs they encounter.
Both of the above statements are true and you in the long run will do the same. You will find your own ways to implement the system you pick. If it were as easy as picking a program and following it step by step to a perfect dog everybody would have a perfect dog.
I basically started out using the old Tri-Tronics Retriever Training book written by Jim Dobbs then advanced into the Lardy stuff but as I went along I have tweaked things to work for me. In the last year or so with the Hillman stuff coming out I use some of that. That's what you call learning and it never stops. Always be open minded enough to look at something new or different. I dont agree with everything that anybody says no matter who they are.
I think it is a great idea to look at everything you can and take what you need from each but if your brand new you need to start out with something to follow then with experience you can expand. I think brand new just starting out I would go with the Hillman stuff and progress from there. I use some stuff that he does and I totally disagree with some but I like his general philosophy. Also how far you go depends on your goals and how serious your are about training