I can't say what class or instructor to recommend down there, but after you refresh a little bit (expert marksman is in there somewhere, just dust him off) you might want to look up IDPA matches. It may not have existed when you were shooting more. Have a look at some youtube videos.
For a competition, the local matches are low key (think 5k races), some compete with their carry guns, and you do some defense - oriented shooting with cover/barricades, kneeling, turn and draw, etc..
Lots of fun.
Good luck to you, doubt you'll have trouble finding a good coach in the gun shine state.