So I got my SAT scores back today...

[ilikeverin]

Colleges vary from school to school in how they count SAT scores; some only take your most recent scores, some take your best scores, whenever they were taken, and some take the best subscore from each of your tests, regardless of when they were taken.  Most schools are fine with you retaking the SAT if you need to; that's becoming more and more common these days.

I took US History and... Spanish... maybe... is that a SAT II test?  I don't remember.  Anyway, you only need to take them if the schools you want to apply to require (or "recommend") them.

[ilikeverin]

All schools accept both (at least, I've never heard of a school that doesn't accept either), and it doesn't matter which you use.  Personally, I did better on the ACT.  If you're SOOPER WORRIED, take both, but it doesn't really matter.