#4. "RE: Cant decide between the 5100 and 7000 as a 2nd Body" In response to In response to 0
In addition to the better AF system, the D7000 has a penta prism viewfinder compared to the penta mirror viewfinder in the D5100 and D3100. It also has a sub-command dial and more dedicated buttons to quickly change settings without goint into the camera menu. Good Luck and Enjoy your Nikons!