Here's a list of Florida races so far this year, I have checked the dates the best I could:
Alex Caviglia Regatta Miami, FL Jan 18-20 www.next-sports.com

Island Style Classic Sarasota, FL Mar 23-24 www.islandstylewindsurfing.com

Calema Midwinters Cocoa Beach, FL Feb 28-29 Mar 1-2 www.calema.com

48 Hours on the Causway Miami, FL Mar 8-9 www.next-sports.com

Florida Windfest Cocoa Beach, FL April19-20 www.calema.com

USW Nationals Worthington, MN Jun 11-15 www.wgtn.net/wow

Fall Showdown-Raceboard Championships Fort Walton Beach, FL
Oct 24-26 www.liquidsurfandsail.com

Miami ProAm Miami, FL Nov15-16 www.miamiwindsurfing.com

i to i Distance Race Fort Lauderdale, FL Dec 6-7 First race of 2009 NRT
www.i-to-i.org

Let me know of any others.
Mike

Updated:
Alex Caviglia Regatta Miami, FL Jan 18-20 www.next-sports.com

Island Style Classic Sarasota, FL Feb 23-24 www.islandstylewindsurfing.com

Calema Midwinters Cocoa Beach, FL Feb 28-29 Mar 1-2 www.calema.com

48 Hours on the Causway Miami, FL Mar 8-9 www.next-sports.com

Florida Windfest Cocoa Beach, FL April19-20 www.calema.com

USW Nationals Worthington, MN Jun 11-15 www.wgtn.net/wow

Fall Showdown-Raceboard Championships Fort Walton Beach, FL
Oct 24-26 www.liquidsurfandsail.com

Miami ProAm Miami, FL Nov15-16 www.miamiwindsurfing.com

i to i Distance Race Fort Lauderdale, FL Dec 6-7 First race of 2009 NRT
www.i-to-i.org

All the info is up for the Island Style Classic with new web address: Island Style Classic Sarasota, FL Feb 23-24 www.mswindsurfing.com
Hope there's a big Kona turnout.