Hi Ann,
That is exciting! We do have a few guilds here. There is one in Sarasota which has monthly meetings (except in the summer) and usually a big workshop in Februarys. There is also a smaller guild in Venice which meets about once a month during the year as well.
There is also a guild on the East coast in Orlando which has workshops throughout the year as well.
At some point, I am hoping to start getting some calligraphers together somewhere between Sarasota and Tampa as there are a few calligraphers in Tampa who have been talking about getting together.
NYC has some great guilds though but we definitely have a nice active calligraphy community here.