Looks like Leather Fern
Acrostichum danaeifolium to me.
It's a huge fern that can easily get to 5-10' tall in moist, nutrient-rich environments. Your fern is definitely not Cinnamon Fern, another really large fern. I'm not familiar enough to know if there might be other contenders.
DannyMac, there are a couple forums you should "watch". In the right hand column are the words "Watch this forum". Click here and links will appear on your home page whenever you log in, and you can easily see if there has been any activity there since your last visit.
Florida Gardening
http://garden.org/forums/view/...
Plant ID
http://garden.org/forums/view/...
There are others, of course, depending on your interests. You should check out the forums list. But these two in particular I recommend.
The Florida Gardening forum are mostly people that live and garden in Florida. We know that Florida gardening is different than that of any other state., with our subtropical climate and our rainy/dry seasons. Some great people with a lot of Florida-specific (as well as other) knowledge there.
The Plant ID forum is a great place to go when you need to ID a particular plant. Again, a lot of very knowledgeable people are regulars there, and they seem to thrive on trying to be first with the right answer.
As you familiarize yourself with ATP, more and more you'll realize what a great resource this site is!
