Wow, that looks like a brutal workout... I'm gonna have to try it!

And although I've never been a huge Robert Plant fan, I have to admit the song was perfect.

Looks like fun... we'll have to give it a whirl.

What's the rx'd weights for men and women? Also, is it true to the Grace WOD in that it's "any way overhead (i.e., power snatch is acceptable), or does the bar need to stop on the chest on the way up?

Rx'd is same as Grace -- 135 for men/95 for women

And, as far as I know, Grace is clean and jerk anyway you can do it -- so power clean or squat clean, jerk or split jerk. I personally think power snatch is stretching that interpretation, but you can probably find more discussion of that on the CrossFit Daily Comments or the Message Boards.