http://www.youtube.com/watch?v=mQBKpV9emKc
do not forget take time to practice
I watched my cousins doing mashed potato dances and singing (growing up in the 60s).
when I came to the states
they told me do not forget "kung fu/tai chi time".
understanding is one thing.
being proficient needs a lot of practice.
only practice the right way every time will get you there.