the books i used-
First Aid (as the previous poster mentioned, this book may be the only essential one)
BRS Path
BRS Physio
BRS Micro (most of my friends used Clinical Micro made Ridiculously Simple, but i just couldn't take it's style...)
High Yield Neuroanatomy
High Yield Gross Anatomy (borrowed from a friend, read only the limbs chapters- most of the anatomy questions i had on the real exam concerned upper / lower limbs)
High Yield Behavioral Science (again, borrowed for like 2 hours and scanned through it, not too helpful)
Kaplan QBank (did all the questions)
as far as pharm, immunology, and biochem are concerned, i only used first aid for these subjects and didn't have a problem. i bought most of these books new, so with Qbank this all probably cost me ~$250. usually third and fourth year students will sell their review books, you can save quite a bit there. good luck
bud