I think anyone waiting for the D400 is getting pretty frustrated. It must now be worth looking at the D7100. On another forum post today I put my latest thoughts'
Despite its annoying lack of semi-pro attributes, like the 10 pin connector, missing AF-ON button (re-allocating the AE-L/AF-L button is no replacement in my view)etc. However, it has the potential to deliver 90% of what a semi-pro body could achieve at a very affordable price. The extra crop mode should give a stop free narrower field of view bonus and the 51 point focusing all helps it to achieve semi-pro credentials.
So, yes if it will do 90% of whatever a D400 will do, then it's an absolute bargain. One UK dealer is even offering it already with a £110 ($165) discount even before it's in stock! If a D400 does come it will be almost double the price I'm sure.
The more I look at this camera the more I see the potential of it. I have been watching D7000's on a major auction site this weekend selling for £500+ with between 5000 and 12000 clicks. That represents, after charges, around 40-50% contribution towards a D7100. I think many may be tempted.