Will,
The only purpose of the middle-classes is to
worry They (sorry, we) worry about our pension plans, e-coli on cucumbers, getting the latest Audi model, having the right smart-phone, letting our kids out to play, and, it would seem, the reported sensor problems of the Nikon D7000.
I'm fairly certain that if there was a problem with the sensor that Nikon would sort it out very quickly. They have a huge reputation to maintain at a time when global double-dip recession is on the menu. But, of course, I could be quite wrong about that, which just gives you something else to worry about.