Perrone, You should rent a D4 for a day. The camera is a real image taking machine. Right out of the box, it is so fast in every way that it is hard to miss a shot. The XQD card makes everything even faster. The newest version is more than twice the speed of the Lexar 1000 which you can also still use. The 16MP D7000 produces really great pictures. So far it appears the the D4 FX images are better. And I even like the feel of the camera better than my D3 or D800.