I'm a happy D300s owner but I've given up on the D400. I'm close to buying a Sony A77 kit which seems like an awesome package. The A77 kit lens is a 16-50 f2.8 and the cost right now is very reasonable. What does Nikon have at this time that is close to the A77 in performance and more importantly the fast professional grade 16-50 lens? BTW, I'm a life long Nikon collector and user and would love a D400 but I don't see it on the horizon.