We are having our wedding at The National in July. It's getting close and the planning has been a great experience (especially nice since we are doing everything remotely from Boston). Did you have any specific questions? I'd be happy to share info on the other folks we are partnering with. Just let me know.
P.S. Our favorite blog posting from last year: http://www.katbramanphotography.com/tag/national-hotel-miami-beach/
Click on each tool to see a sample.