Again, I think this hammer throw really illustrates the basic mechanics of any balanced swing. His posture is perfect, his lower body maintains a slightly seated, athletic position throughout. Just before he snaps his kinetic chain (he does this three times) he drives the ball of his right foot into the ground forcing his momentum towards the apex at which he plans to let go. As the hammer collects this momentum, his weight shifts and slams against a stacked and solid left side with his posterior counter-balancing the mass of his arms, the chain, and the hammer.
I think the hardest part of the golf swing is feeling as though you're already in motion before you begin the back swing. That's why throwing the hammer or swinging a bucket of water tied to a rope is so much more intuitive than the golf swing. Feeling the right time to snap the kinetic chain is easy once momentum is already established.
Look at Vijay:
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http://www.youtube.com/watch?v=A2o8WHCRNy0)
The first move he makes is kicking his right knee toward the target. I think this move contributes immensely to his rhythm because it makes him feel as though his core momentum is already established before his club/arm/shoulder unit begins the backswing.
Edit: Embedding video didn't work. Just cut and paste the link if you're interested.