If it were me, then Personally I would wait a while. The price will drop I'm sure, the UK price of the D800 has dropped 10% over the last 3 weeks. I know the price drop is 7 months after launch, but this is a different camera aimed at a mass potential market. The D7000 was launched to fill a DX gap as a similar level launch and it's price reduced quite soon after launch.
Also, perhaps waiting a while is prudent so any gremlins can be sorted out before buying. Of course there won't be any