IMO, you can take a "pro" level image with any current Nikon DSLR and many models before the current crop. Just look at the images captured by the truly dedicated that are on this site and dotted across the Internet.
Henri Cartier-Bresson shot with a completely manual focus, manual control Leica that many would consider absolutely crude compared to a Nikon's entry level D3100. Does anyone think he was not a pro?
It's not the camera, it's the photographer, regardless of the current crop of technology.
"Extraordinary claims require extraordinary proof " - Carl Sagan