Hey,
I think Pemulis's comments are pretty accurate. Like him, I just recently applied and got into the programs (I decided on Bryn Mawr, though, mainly due to family in the area). I have done as much research on the two as possible (ie, talked to friends who went to both, read all the stuff on the internet I could find), but unfortunately I have little more than speculation to yield to our discussion.
One thing to mention is that the admissions people probably look for >3.5 GPA, but you can obviously make up for a lower GPA in other ways (ie, good test scores, non-academic accomplishments...etc.). My college GPA wasn't quite so hot - and they definitely drilled me during the interview as to why my GPA was as low as it was - but I managed to squeeze through. Just as for any other application process, if you're weak in one area, you'll hopefully back it up with strength in others. And with a GPA over 3.5 (hopefully from a strong program), you can make up for a couple of holes you might have in your application!
You asked about GRE/SAT scores. This could be way off, but I asked a friend of mine in the Goucher program this same question, and he said a ~1430-1450 SAT and 760-790Q/680-700V/5-5.5W GRE were the approximate scores of what they'd expect. Better scores would help out, obviously...worse scores might hurt. Again, though, don't put too much stock in aforementioned scores, as my friend probably based them on hearing only a couple of his classmate's scores.
So, good luck with the application process. Hopefully you'll make it into both schools...if you do, I guess Pemulis and I can try to persuade you to come to our own respective schools (actually, no, since you have a pretty good GPA, how about you go to his and not kill the curve at mine

)
Enjoy!