There's a pretty good write up of Kershaw's mechanics here : http://www.hardballtimes.com/main/article/is-clayton-kershaw-worth-the-hype/
I'm enthralled by Kershaw, and I think he is the absolute best pitching prospect in baseball and likely the best overall. I don't know much about mechanics, but I haven't seen too many red flags.
I think we're all looking forward to see how the Dodgers will handle Kershaw. I don't know that I'd put him in AAA, as opposed to just jumping him right up to the majors. Jason Schmidt's rehab is coming along nicely, so I doubt the Dodgers will need to throw Kershaw into the fire from the start. I'd be inclined to put him in the bullpen, where he could effectively turn Dodger games into a 6 inning affair (Kershaw-Broxton-Saito).
What do you guys think of Kershaw's mechanics? and his future prospects?