This weekend (May 17-19), local hacker group HackMiami is having their first conference, Hack Miami 2013. While not a member of the group, I have heard of them, and we've had them help out with some of our South Florida ISSA events.
Overall, the conference looks pretty good. They've organized 3 tracks, "old headz", "new headz", and "moral headz", so there should be a good mix of sessions to attend.
Seeing as how Hacker Halted USA isn't coming back to Miami this year (they're going to Atlanta this year), this may be the only major IT Security conference in the South Florida area.
Next week I'll post my comments on the event.