You can check out my school at www.movementsofmagic.com (click onto "school"). I received my teaching certificate from Grandmaster William C. C. Chen in 1975. We are in Sound Beach (near Rocky Point and Mount Sinai). I teach Yang and Chen forms, animal and weapons forms, push hands, chi-gung and the fighting. We are at a low ebb during the summer but usually pick up quickly by mid September. There are many excellent teachers on Long Island. It would be a good idea to look at each schools's website to learn about the emphasis of each. Then attend those within a reasonable distance to get an idea of the quality of teaching. Good luck with your Tai-chi studies!