You will also need to send them and the department a formal letter of acceptance. Sending schools you decide not to attend a formal letter as well is always a nice touch. The Graduate School Guide is similar, but also worth looking at. Phil Agre has designed a site that is extremely helpful in making graduate school decisions and well worth reading. Drew University has an excellent site which walks you through the graduate school process If you're having trouble writing the essays, The Renssalaer Polytechnic Institute offers a page with some good advice.
Education has some excellent links to just about everything regarding women and education.