Dznefreek,
As others have said, it appears like you are trying to get a blessing on this board, or a majority to say, "hey, go for it". That just isn't going to happen.
I think it is a nice idea and would love to have someone do this since I am not in the majority of our vacation photos, but it is against Disney rules, and actually illegal due to copyright issues. You might get away with it one or twice, but if you do it every week, they will notice you. They have some pretty high tech security and the same person coming in every week with different families would eventually be noticed.
I don't know your ethnic background, but if you are white, what if you are photographing a hispanic, black, chinese family and you aren't going on any rides, just taking photos of them? It would be totally obvious that you weren't part of the family vacation.
As the link above shows, someone was giving FREE tours to 9 fans of his books and was hassled. They just saw him jotting notes down and had security all over him. If he charged $.01 for a map, they would have had him kicked out immediately.
Go ahead and do what you want....but don't be surprised if you get kicked out, and worse, get contacted by their legal department. If you really enjoy Disney, is it worth the possible problems and possible banning from the parks?