$50 in Miami might be tough my friend. I've only played there a couple times, but those times were well north of $80 to $100 per round.
I think you should hit golfnow.com and start looking at places on line. Once you get a scan based on those, maybe others can be more specific for you. As an FYI, I was at Doral in January and it was SO beautiful. Perhaps you can swing a deal based on where you stay and do a "Stay & Play" package. Right now, based on the economy and how golf in Florida is doing, I think you'll be in a good position.