Awesome thread. Yes, we have some cool metal going here in Central FL. So far this year I have seen Trouble, Ozzy, Accept, Iron Maiden, Symphony X, and Volbeat. Holy Grail played again the other night but I missed it. We've got Kamelot, Mr. Big, Stryper, Dream Theater, Firewind and the Intromental Showcase coming up.
Don't forget about House of Blues (Downtown Disney) and Hard Rock Live (Universal). If you are new to Orlando, I would highly recommend any of the "Classic Albums Live" at Hard Rock Live. Pretty unique concert experience.
I was bummed as well when Bourbon Street in New Port Richey closed. They brought in a lot of bands that rarely play down here. I saw Helix, Metal Church, Lillian's Axe and Vicious Rumors there, among others. 2 hour drive for me but worth it every time. I loved that place.