Review the interview material here on SDN. Have a couple of questions "canned", but not all of 'em. Some, you really can't have an answer and others, an answer should be prepared.
As for the interview. Be yourself. Introduce yourself to other students. You may be going to Pacific next year. Make a couple of friends and get to know who you're interviewing with. Everyone will be stressed out, why not make it easier for yourself.