New England Grows is a great one with vendors from every major manufacturer and distributor, and plenty of classes. I know its a little further than your looking for but it's well worth the drive/flight/train up to Boston. It's a three day show and if you are taking classes it can definetly fill the three days for you. I go every year and am still surprised with the amount of people that come from around the country and canada for it.
Why do people not respect us as they do other tradesmen? Because every Tom, Dick, and Harry doesn't think he can be a plumber or electrician!