Does the Nikon D7000 have a design flaw (backfocusing)? Or is it a good buy?

I'm considering buying a Nikon D7000 for wedding photography because its in my budget range of ($1200-1500) and I've read reviews thats its good for low light situations. What worries me is the reviews on AMazon show that there's a widespread focusing design flaw. For my budget should I get the D7000 or move over to something else? (Note I have a D3100 + 55-200mm lens + 35mm prime already… All Dx format)

The D7000 is a great mid level camera. And if you want to do weddings, you need more lens!

Front & back focus problem are related to the lens, not the dslr, some dslr like the Nikon D7000 offer the possibility to fix this issue via the "AF Fine Tuning" from the camera, giving you the option to adjust the focus point forward or back for all your lenses (up to 12 lenses).

If you buy it follow these steps
http://regex.info/blog/photo-tech/focus-chart

Then once you conduct the test go to your Setup Menu on your camera and choose the option AF Fine Tune. Page 246 in the manuel.

http://www.nikonusa.com/...000_EN.pdf

The default is set to "off", change it to "on", then adjust the focal point toward your camera (-1,-2, etc) for the back focus or adjust the focal point away from the camera (+1,+2, etc) to fix any front focus.

Press "ok" when you're done to save your new setting, every-time you will attach your lens on the camera, the camera will detect it & will load up the new adjustment, you can turn it off at any time.

The focusing flaw in the D7000 is that if the camera does not think you are in focus it will not let you take the picture in Auto Focus mode. It's a great camera otherwise.