I haven't heard anything more than you probably have - they just don't know yet. I am concerned, but maybe that is just a factor of my having been in FL only a year.
It really is still too early to predict for Florida (or any U.S. coastal area)yet. The biggest problem is that the computer models NHC rely upon are not in agreement at all.
The most ominous one is UKMET Model. It has Isabel hovering off the mid Florida coast at 120 hours.