The problem with most internal arts videos is this: they show repeated movements at different angles but very little real instruction.
I believe instructional videos should teach the fine points. With that principle in mind, I've produced the first in a series of internal arts DVDs -- "Hsing-I Class Volume 1--The 5 Fist Postures."
I've won many forms competitions with Hsing-I, including a gold medal at an international kung fu/wushu tournament in Chicago in 2003 (with all Chinese judges including some Hsing-I teachers). My students have also won many forms competitions. But Hsing-I is very difficult, and it's impossible to learn it from books because of the intricate body mechanics.
In this DVD, each of the fist postures is demonstrated, then you watch students perform the movement, and watch as I coach them through the fine points and correct some of their mistakes. You will learn the fist postures if you practice along with the class.
The DVD is one hour long. To order (it has a money-back guarantee like all my DVDs) go to the website.
Here's a short clip of two students being led through Pao Chuan (pounding fist). With each fist posture, I went through it with students, then watched as they performed it and then coached more specifically.