This is kind of an unusual post I suppose, but math was always by far my best subject, to the point I would probably be considered as gifted in it, but in college I pursued biology and physiology, largely because I was very interested in those subjects and did not realize how rare mathematical ability is. I only had to take a year of physics and up to Calc II. I scored 5s on the AP Calc and AP Physics tests in high school, but then didn't take Calc II until my senior year of college and was amazed at how much I had forgotten (mostly all the trigonometry tricks but even basic things like knowing the quadratic equation in terms of x off the top of my head).

Anyway, I'm now 30 and am looking to go back to school for a PhD, and I'd like to do something quantitative, not necessarily strictly math, but something quantitative in the sciences, and I would like to refresh all my math skills. Anyone have any recommendations for that? I thought about just blazing through some Math Subject for Dummies books. I don't think it would take me long to refamiliarize myself. I just need something to jog my memory since most of this stuff hasn't crossed my mind in so long.

Suggestions?