Do you do horseback riding or shooting sports or fencing? Those are all big plusses for getting into West Point (or so the grapevine says :-). I think they're looking for Modern Pentathlon competitors!
You can get all the application information from the academies' web sites. I think some of them will even provide a contact in your area who's been through the process and can advise you. (You could probably find this on FR, too.)
FR is such a great resource, eh? So many different walks of life, so much experience and firsthand knowledge... I'll have to look into the websites- thanks for the tip!