When he gets another job it will be a legitimate team. Louisville, IMO, is not legit. If he intends to get CEG to become one of his Coordinators he can't afford to go to a "Louisville". I'm thinking almost anything in the ACC, anything in the SEC (pretty full of new coaches though), almost anything in the Big 12. Just can't see Tubbs in Big 10 or Pac 10 country.
If Spurrier lets it be known that he is leaving in a year or 2 I could see him there. Other than that the SEC is pretty solid.