Right around 2.5 years after the introduction of Nikon's most recent game-changer (yeah, we're bragging about at the D3S), its proper successor has emerged. Without qualification, the amount of hope and expectation surrounding the Nikon D4 was immense. In a way, most Nikonians were (perhaps foolishly) expecting the D4 to be to the D3S what the D3S was to the D3, and we'll confess that we were cautiously saving up precious pennies in the event that the game was changed yet again.For better or worse, the actual specifications of the D4 ended up as hardly w