I agree with twinstars... And I'll add one more thing about pictures. Some girls go all out and have professional glamour shots made just for rush. At first it seems like a good idea. But, although they look great, I don't know of a single girl who actually looks like a beauty queen all the time. You want the sorority women to be able to recognize you when you walk in the door so that they can match your name with the rush application you send in. Anyway, hope this helps!!
Good luck!!