Congratulations on getting tickets worked out - prepare well and you ought to have a good time. There's lots of information here on eplaya and - of course - in the mandatory reading.
As Savannah mentioned, San Diego has a regional group. In fact, San Diego has a pretty active Burner community - we have a weekly meet-up at a bar every Tuesday. Be sure to sign up for the weekly news email (follow the links here: http://regionals.burningman.com/us_ca.html
) if you want to hear more about that and other local happenings, like poi on the beach, this weekend's cookout, or how to help with the San Diego CORE effigy.
It makes sense if you don't think about it.