EyeCandy --
here's what I'd do:
1 - purchase from someone a Kaplan DAT lesson book. There are lots of folks on studentdoctor who have book, I'd guess. Study hard from this, as it really covers all the bases well. Also see if you can purchase the Kaplan CD (though they expire I think).
2 - purchase TopScore PRO, which has excellent exams that you can simulate the exam with prior to the actual DAT
Start with this, and I am sure that you will do well.
Oh, there's also a 3 - if you are in the San Francisco bay area, you might consider taking Kaplan's DAT class in palo alto. I teach it 😀