As mentioned earlier, the Marlins stadium issue will soon come to a dramatic conclusion. We don't yet know what that conclusion will be though.
My main concern with this whole process is that the voice of the people really has not been heard. Funding of this stadium has not been put to a vote. Even if it was, most of us - myself included - probably wouldn't have a very informed opinion about it because the facts surrounding the program have been very vague.
Despite all of that, I'm sure you have some feelings about the issue. If that's the case, feel free to let your State Representatives know about it. Give them a call or shoot them an email. Here's how to get in touch with them:
Florida House of Representatives
Find your representative - although I couldn't get this to work, even with my Zip + 4... maybe I'm really not represented
Find your senator - This search worked much better and can even help you with your House Reps
UPDATE: I already received a personal response back from Senate President Tom Lee. You should considering writing a note or two as well - your voice may actually be heard.