These two tutorials cover how to create an IK / FK arm with twist bones in the upper and lower arm.

"I just finished up the first version of this DLL for 3dsMax (still pretty rough) that we're going to start using here at Blur...pretty much it embeds python for use inside of MAXScript, opening up all the modules that exist in python directly. There are some example scripts on how its used, but its relatively simple - you import your module, and work with with it as if you were in python."

www.CG-Academy.Net

CG Academy Intermediate Rigging DVD Box Set now available by Paul Neale.

DVD #1 focuses on production methods for creating animator friendly character rigs using an Ogre model that I custom built with this series in mind.

DVD #2 continues with spline IK, arm rig and twist solutions, hands and more custom scripting for creating control Interfaces.

DVD #3 This DVD covers skinning the Ogre character using stretchy bones, morph deformers and many other techniques

DVD #4 is facial setups with targets and bones.