This video shows a simple but effective forearm setup, using an extra Bone (and Node) to enable Forearm twist.
We’re also removing hand twist from the hand-bone, and controlling it with the wrist from the new node. This setup is more based in reality, and will allow more accurate deformations (though weight-maps would be recommended) and faster manipulation when posing your charcter.
There’s some extra video added on at the end describing what could be a pitfall if you’re not aware of it, but is a very useful little feedback tool if you are 
This is dumb-bells on the end of your ‘high-bar’ which indicate that an objects rotation is outside its set limits. Here’s an image too, because it will be hard to see on the video.
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Hello,
I would love to have the IK Booster QUICK TIME MOVIES without the rar files for Quick Time. Is there any way possible for this to be arranged and forwarded to me.
I would appreciate it, if posssible:
Regards Sue
July 2nd, 2006, at 6:44 am #Finally worked out the compression process. New to all things.
Your turorials are great.
Thankyou.
Sue
August 6th, 2006, at 1:17 pm #Glad to hear it Sue, I was on a transition to Broadband there for a while, but now that I have it - alternative (and higher quality) formats are a good possibility
August 11th, 2006, at 6:59 pm #Glad to hear you got it sorted in the end anyway