Zumba!!!!!!!!!!!!!!!?

OK so I've been doing Zumba for a couple months now and love it!! Despite the fact that I cannot get the footwork down! Really wish Wii would come out with Zumba but that's just a far off request I am sure...LOL!! So my question is if anyone knows of a place I can go online or where I can purchase a DVD of the basic Zumba moves. I don't want to spend the $50+ on the entire DVD collection because I take the cles weekly, I just want an instructional video to practice the basic steps at home. Can anyone point me in the right direction? No myspace referals please!!!