As an idea.... I recently purchased several suggested texts, Cliff's everything, Baarons and the works. I began studying as if taking the classes and going through everything. As for me I have found that I do better focusing. Yesterday at the bookstore I ran into Kaplan's BB and think it is a much better place to start. My plan is to go through Kaplans a couple of times, brush up on the other material. I am going to take as many practice tests as possible to gauge my weak areas and then study them like mad. Then about a month out I am going to start in on Destroyer and Topscore. I will use Crack Dat Pat as soon as I get it ordered up and plan on having fun with it. I really enjoy studying Pat and don't see it being as much of a problem.
Just an idea from someone who is preparing to take the DAT around the same time if the planets align.