almost any book will do fine. the main thing is you! different books have different ways of preparing you for the test (i've experienced that because i'm preparing for my MCAT using books from two different providers and they instruct in somewhat different way). but the important thing is getting there, regardless of what route you follow. if you are taking a prep course, go with kaplan. expensive but you'll get good score. but i don't recommend doing that because you can do that at home, studying by yourself. that's what i'm doing too, saves ton!
get a barron's or kaplan gre prep book and study hard, you'll rock the test.