ruben22: You may be confusing it with the Princeton Review (PR) for MCAT.
I actually join both PR and Kaplan when I studied for MCAT in San Jose California. The situation might be different for different states, so please keep that in mind as I tell you about my experience.
I thought PR has better teachers because they had different teacher for each section, whereas Kaplan has one teacher that teach all the material. However, Kaplan has a more comprehensive and dedicated library of test materials than PR. This library is only as good as how you much you are dedicated to sit yourself at the site.
As far as I've ever heard anywhere, Kaplan is the only prep company that offers DAT review. If you want to know more about how to study for it, and/or what kind of material to use, then keep browsing this site, and don't let other people's high score discourage you because everyone on SDN are nerd freaks. They are all nice nerd freaks too, so have fun. Keep posting.