No, LISA is Large Installation Systems Administration. It's an annual conference held bye USENIX and SAGE. See http://www.usenix.org/events/lisa04/ for more info.
Too late for this year, but for next year look into their student program where USENIX pays your way. They select several college students a year to attend free of charge. See http://www.usenix.org/students/stipend.html.