Try this list.. http://www.ibmwr.org/dealers-independent.shtml
There is also another shop in Deland FL, Rick's Motorcycles (IIRC). Rick is a BMW tech that used to work at 441 Cycles down in south FL. I've met him but never had any work done there yet. Seems cool.
Merritt Island, FL
When a person asks you for advice, they don't want advice. They want corroboration.