I flew down to Fort Lauderdale from WI in September. I weaved through most
of the SUA by useing Cross City as my jumping off (into?) point. It worked
very well. I realize KCTY is on the west side of FL, but it may be an
option for you.
http://flightaware.com/live/flight/N...231Z/KCTY/KFXE

Jim