'Am in PA, so no local suggestions, but the one thing I've found online today is the "Atlantic Bakery Expo." The info from 2002 is here, and I'm pretty sure I saw 2004 updates on either that website or another while searching. http://www.rbanet.com/events/marketplace2002.htm
And while I'm posting to the resident Cookieman,
I found a site last night called cookiedecorating.com
that I also recommended to be added to the links here. A couple of the techniques on that site are new to me, and the site has some nice ideas. And again, kitchengifts.com
is a fabulous resource for cookie decorating.
Anyway, I would think--and hope!--that any of the culinary schools would know of local contests, so maybe that's worth checking into. And I found more results online searching under "competition" than under "contest," for what that's worth. Good luck.