I do Quantum Savvy with Arnie. Its amazing - here's my thread from our 2 day course this summer with Shane

. I am normally a "traditional" type of rider but Arnie proved to be a challenge and has made me rethink all my previous ideas about horsemanship. Luckily for me, I met someone who does QS and she helped me out and got me into it. It has completely changed my outlook with Arnie - we are now a happy partnership
http://www.newrider.com/forum/showthread.php?t=198947
I had the most amazing weekend ever. Shane is incredible in action. He is very quiet and unassuming and within seconds has the horses falling all over themselves to do exactly what he wants!
If you go to the QS website and register, he will send you some information to get you started. Its free! He sends out about half of each of the first 4 lessons. More than enough to let you get going and make sure its for you before you sign up.
You do have to be a paid up member before you can submit assignments though. If you become a member (its about £11 per month or you can pay annually), you get access to the equipment and videos etc at a special members price.
You can get all the equipment you need off ebay - there are some good deals to be had - shop around

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Hope you have fun!