Buck the Film
I didn't know when I would be lucky enough to see this documentary on Buck and his life and training "techniques". However, if you have a Netflix subscription you can now see it on Netflix streaming (and probably DVD). Even if you aren't a horsey person I would recommend watching this film. The unbelievable hardship and abuse that Buck overcame in his own life is remarkable and inspiring. He has a lot more to offer to the world than just training horses and starting colts.
Buck... I pray with all my heart that you know Jesus in this world and next.