Hey lilhit,
Good for you, that's very exciting about your interview.
Be at ease! The interview was very relaxed. If it's anything like the February interview I had (I was in San Fran), it was two interviewers (I totally forget what their names were, Nealon told me) and one of them did most of the talking.
Basically, they opened with "Tell us a bit about yourself", and most of the conversation that followed was based off questions that came from that. So long as you are confident, it's a discussion about you. There are no wrong answers.
If you have any specific questions about the interview, don't hesitate to post them.
-J