UPDATE: I have been going back around to all the independent record/cd shops here in Orlando lately. For the most part, they are unimpressive, but I can now say that Park Avenue CDs (which I previously mentioned) is worth the time if you are in town and have some time to kill. They moved a few years ago, and I hadn't been there in a while until recently. They have a bigger selection now. Still nothing to get too excited about, but the used cd section is fairly big and they actually have a metal section (or as they call it- "Heavy"). It's not that big, and most of it is on the death metal side, but I did see a few major label power metal releases in there such as Sonata Arctica.
The address is: 2916 Corrine Drive, Orlando, FL 32803