Not sure what part of S. Fla you are in...
If you are looking for travel ball, keep an eye on the help wanted section of the Premiere League... http://www.floridapremiersports.com/help_wanted.php. I'm pretty sure you can place an ad there yourself as well.
My son's showcase program is running some fall teams, but competition for spots is very tough. They have a tryout/showcase day coming up next month... www.southfloridabreakers.com.