I am so confused. I want both. I am making a purchase of a new DSLR in April. I started with the D90 and now I want the D7000. The reviews are so much better for the D7000. The fact that the D7000 is better sealed and air tight than the D90. Will that make a big difference for me spending most of my time out on the ocean with my camera? I am careful to never get any water on my camera but the sea air alone can be very taxing on a camera.