Well I don't have a problem with CR or writing, so I only bought the collegeboard book and Dr. Chung's SAT math.
I only bought collegeboard because it had 10 tests and it was from the test makers. It just gives you a lot of practice, but if you're scoring low, don't rely on this book to thoroughly go through every problem for you.
Dr. Chung's SAT Math:
Dr. Chung's is absolutely amazing!!! It has 50 really short tips that show you how to do a problem as easily as possible and then gives you 3-4 practice problems with answers on each tip (sometimes up to 11, depending on the tip). After that, the book has 20 complete math tests which is great because it's more than enough practice tests to last you the summer. The answers all have explanations on the back if you need it. There are some grammar/punctuation/spelling grammars, but since it's a math book, I doubt that's a big problem. Let me say though that if you're scoring below 600s on the math section or you're getting below a B or an A in math class at school, this book is probably not for you.