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None of those. You'd need one for Nikon to Micro 4/3rds. None of those are for Nikon.
Also, if you're going to get a Nikon dSLR...then that Nikon lens might be nice, but if you're not going to get a Nikon dSLR any time soon, then you can buy older, cheaper, manual focus lenses. The auto-focus feature of that Nikon lens you linked to will not do you any good when strapped to the GH1.