Video of Datsyuk shootout goal ?
As for Zetterberg's - Gulyavtsev and later Andrei "Golden hands" Razin did it in RSL, but Gulyavtsev was first, I think he saw it from some USSR player in past (probably Kharlamov).
Who cares who did it first, seriously?
I really think Zetterberg's is a lot better than Nilssons & Forsbergs, though. Zetterberg seems to be doing it at a much slower pace and has gotten the goalie totally out of the crease atleast twice that I remember.
Here's him on Raycroft in pre-season, too: http://www.youtube.com/watch?v=ZudzHYG_VJ0
I really like Datsyuk's move that he used against Colorado, too. He's done that one quite a few times, too. I think I've saw it done on Khabi & Kipper atleast, so yeah..