I've just recently gotten into CrossFit, and in my searching, stumbled across the website of the gentleman that trained the actors/stuntmen for '300'.
His website is www DOT gymjones DOT com.
If you look under the 'Schedule' page, the workouts for the people he trains are given. In my limited experience, pretty hardcore stuff. Based on CrossFit, but takes it farther and makes it more painful
Edited to add: Site is run by Mark Twight - failed to search before posting, and is previously referenced in the
Bodyweight PT thread.
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