I need a workout class in houston?

i want a class, like zumba, toned down. or a pole dancing class, or belly dancing even. im 16, and i just want to tone up a bit, not looking for super dramatic weight loss. but i want the class to be lightweight, cheap, and i dont want commitment, just show up on time and pay about 20 bucks, and go home sweating :] anywhere in houston, closer to the east side the better. (no i dont want a gym membership, or curves.)