These announcements confirm (yet again) a philosophy that has served me well over the years...
Spend as little money on the camera bodies as you can, and sink your money into fine full featured lenses. Cameras come and go, but if you buy good glass (and avoid DX glass where you can) then you are going to be able to use it for a very long time on several generations of bodies.
Having said that, I am drooling over the D3... so much so, I am worried about shorting out my keyboard.