Melissa, it sounds as if you have a good handle on rush, and frankly, you're making me wish I was going through it all over again!
One bit of advice that I give to everyone who's going through rush is this: be sure that you like the women who are around your age. If you choose a chapter for the seniors, just keep in mind that they won't be there next year.
At any rate, enjoy and be yourself!
Good Luck!