OSUdoc08 said:
For the MCAT, you will need Genetics & Physiology.
I disagree with that statement. One does not NEED to take genetics or physiology for the MCAT. Whatever you've learned in college biology will be enough. Now, I'm not to saying that it will be detrimental if you do take either class, but I think it's misleading to say that it is of grave necessity that you will need them in order to be adequately prepared for the MCAT.
Anyway, as to the OP's question. I'd recommend taking biochemistry after you've taken organic chemistry, physiology and/or genetics. No need to take anatomy cause you'll probably forget all of that anyways and some med schools are peculiar about people taking it in advance. Maybe some additional math courses (statistics and calculus if you don't have those under your belt), and something that you'd enjoy that may or may not be science related (assuming that cost is not a factor and you have the time to take an additional class).
Pineapplegirl had a good idea in that you might want to check out some of the schools you might be interested and see what kind of coursework they like their applicants to have. However, that might be easier said than done.
Good luck,
Sam