I took a Hap Ki Do class at my college this last semester. Its in cooperation with the best dojo in town and they also do Judo, Tae Kwon Do, and a little Kumdo (Chinese sword art). When I can afford it, and lose some weight I'll be joining them. They are really affordable, and the current master, and also the one running the school, as the master has a job, were taught by grand master Yu, who studied under 2 famous generals in Korea and each invented the modern form of one of the 2 Korean martial arts he studied.