Florida's got a pretty good offering.
American Supercar Inc. is Phil Sommers' shop. He's Mike Staveski's (Time Machines) former fabricator/right hand man. He does amazing metalwork and can probably build just about anything.
Time Machines is another option. I haven't seen anything from their shop since Phil left, but I heard through the industry grapevine that they're working on a certain Lateral-G members' car. I'm sure it'll look good since Staveski and the owner of the car are looking to make a splash with it.
Prodigy, well, I'll let Frank handle this one. He's a stand-up guy that does great work, but rumor has it he has kids that run around with welders at his shop. I can't confirm these rumors though.
Anyway, that's my 2 cents. I'm out here on the Left Coast though...so I'm not the best source to get East Coast info from...
Kris