Interview at U.Penn

Hi everyone,
First and foremost, this is such a great website. I have been following various posts since 2002 and have gotten a wealth of information regarding the profession. I recently was granted an interview date in the next 2 weeks at U.Penn and besides being excited, I'm just nervous as hell. I keep telling myself, I'm almost there and keep repeating my mantra "any day now" just to relax and focus. Any U.Penn students out there or anyone with pointers regarding the interview processs in general please help.