Congrats to all who have heard so far...you have reached a great milestone, but just the beginning of a long and arduous journey.
To those with deferral letters, I say, don't lose hope. My own son got one of those despite being a very strong candidate...he eventually got the big envelope, in late March of his senior year. And just graduated last May.
My advice is definitely retake the SAT's if you feel you can improve your score. They are important but only a part of the overall picture. The interviews are also important...might I ask what part of the country you are in? I am surprised there are no AAP's in the area. I'm not sure flying her into New London is necessary, however. As an AAP I would be willing to conduct a phone interview if you would like.
As far as improving your chances of admission, remember your file is "open," so any new accomplishment or award should be reported to your admissions officer going forward.
Keep working hard in school and in your outside activities. Many appointments come from the deferral list so don't be discouraged!