Summary: Very good camera in my opinion. The only limitation is that this model does not have an internal motor for auto-focus lenses. So,the lens itself must have the motor instead. The 18-55mm lens that came with this does have the motor inside, so auto-focus works with it. The lack of auto-focus for my larger lenses does not bother me since I use only manual focus and other manual settings anyway. Auto-focus lies, and I've missed more pics on it than I ever did manual.
Excerpt: The Nikon D40x is a great digital camera. We have had it for about 4 years now, and have been taking some great quality photos with it. It is a good camera for professionals, and it's a great camera for people who don't know much about photography, but want good quality, professional looking photos. The "Auto" button does a good job focusing. Instead of taking our kids to the photo studio, we took professional- like photos of them at home with the camera.