Can I use AAA discount to save on my room when I book, still get Magic Your Way with DDP (Not free), and use my Disney Visa to pay for it all so that I can get No Payment no Intrest for six months? Am I asking for too much?
Yes - you can book a MYW package w/dining and still get the AAA discount (subject to resort/room type availability) if you book directly with a AAA travel agent.
However, as to paying with your Disney Visa, you can get 0% interest but still have to make the payments.
No you may not - in order to get the DDP you must book a package not a room only. In order to get an AAA discount on a package you must book through AAA.