You cannot really learn gong fu from a video. You can learn movements but the nuisances will be missed. I teach Chen shi tai ji and Hou Quan (monkey boxing) and I will show someone something and they will be able to do it but when I walk around them they are missing key parts of the whole. I continually tell one of my students to relax his shoulders and he believes that they are, when in reality I see the tension. A video will not let you see yourself. It can be a great tool; a hammer is also a great tool but you cannot build a house with only a hammer.

Elkeevo my school is in Fort Collins Colorado. Love to have you come up and check out a class or two.
www.meridiangatekungfu.com
Good luck in your search