Prep Guides

<p>Hello! I'm a rising junior and I am thinking about taking a few SAT subject tests. I already took US History (680, DEFINITELY retaking that) and I didn't study for it at all. However, I DID study for the APUSH exam with the Princeton Review book and used the material I learned from it on the subject test. My question is, do you think I should get some prep books for the following tests I'm taking?
Literature (I will be in AP Language and Composition next year. However, I have the Princeton Review AP book for Literature and am getting the latest version of Language)
Biology E/M (I will be in AP Biology next year, I have the AP Biology PR book already)
Math 1 or 2 (I think I am going to take two, next year I will be in Accelerated Algebra two with Trig. and I like math a lot)
Chemistry
Physics
and US History
Any thoughts and/or opinions are greatly appreciated!!!</p>