I went to Sebring in 2008, and I'm hoping to find travel companions to get back there over in 2010.
We took a flight to Tampa, drove to Sebring and stayed in a motel 10 minutes from the track. Payed way too much for what it was, but as we only booked two weeks in advance, it was the best we could find over there (friend of mine drove the race, and only got confirmed that late, that's why we booked so late).
Sebring is a great track, always a nice race, a great atmosphere and great to take pictures (even without credentials). Since 2007 I also went there for the ALMS testdays (in combination with the Daytona 24hrs).