you are provided with a thick blue book when you take the kaplan class
kaplan blue book=DAT review notes
this book with prepare you for DAT, it works!
Don't panic, take the class and then study on your own...you'll have access to the online material...do all the workshops and homeworks even the stupid math questions, they are harder than the actual test but the very well prepare you for your battle with DAT...
read that blue book three to four times and you'll have a big smile when you take your actual DAT
BTW, don't forget about the online practice tests, go to the kaplan center and take them to simulate the actual test
BEST OF LUCK TO YOU FUTURE DENTIST!