Welcome to On the Radar, where we preview upcoming events to mark your calendars for. This weekend marks the fourth year for the Tampa Bay Wine & Food Festival, the big two-day bash at the Don Cesar on St. Pete Beach (pictured: TBWFF 2009). It’s structured like most of these parties, with a giant tasting featuring the produce of dozens of wineries from around the world and food from many local restaurants, followed by wine dinners and seminars starring the fest’s “celebrity” guests. I use the air-quotes mainly because the fame of the presenters is in direct ratio with how inside the wine and food world you are. Probably the most recognizable name on the list is