Robert Landrigan , Jun 23, 2011; 09:57 p.m.
From the D70/D70s, the D7000 is....well, pretty durn nice:) I went from a D80 to my D7000, and I've never been happier with a camera purchase, ever. It ties with the joy of my first bought for me with my own money EOS A2 :) Seriously, every single thing about the camera is better, except the flash sync. But the LCD panel, controls, menus, battery life, flash options, handling, construction - all worth the money. And then you get the sensor. It's a liberating moment when you realize how much more you can do. Your cards may indeed be bad, or the little plastic guides that keep the contacts separate may have gotten damaged, and are blocking one or more.