Have you seen this site? Its an extraordinary resource of free education... a great place to hone your math chops, which is exactly what I'm doing myself
http://www.khanacademy.org/ (http://www.khanacademy.org/)
Or watch tutorials on youtoobs:
http://www.youtube.com/user/khanacademy?blend=1&ob=4 (http://www.youtube.com/user/khanacademy?blend=1&ob=4)
It is a pretty good tool. I teach math and several of my coworkersmand I are using it with our classes.