I have a box set of the Dental Decks but am also thinking I should get some other prep material to prepare for the first part of the National Boards. Right now I'm thinking of either getting Mosby's NBDE review or First Aid for NBDE part I. Has anyone used either of these and are they worthwhile? Also, I have also heard Kaplan's Qbank is good, but do they also have a book or something that is helpful? Should I get the Qbank eventhough I already have the dental decks? Any input is appreciated. Thanks!