We've got a pretty decent trail network run by a local group on the south end of town. Good for a couple hours of riding, by then you've pretty much seen them all. If you're heading up this way, I can give you directions.
Avalon was OK if I was aching to ride, but didn't want to spend any money. That's a shame that it's closed. I tought 2 friends and my wife how to ride motorcycles there. I remember hearing that they were threatening to close it, due to all of the illegal dumping (trash). It sucks because it wasn't the people riding there that was doing the dumping. Then of course the people that refused to stay out of the dirt pits.....
You all do have West Florida MX! That's one of my favorite tracks. That guy builds the most amazing jumps! I can't wait to go back. I kick myself constantly for not riding there more when I lived in P'cola. No excuse since he's open every weekend.