If you will be shooting in a studio, then nikon camera control pro will be an amazingly powerful app. All the controls of the camera can be controlled via the computer, and with live view mode, you can see,focus,shoot the live picture right from your computer screen. It is a great app for studio photographers who can be tethered to a computer at all times. I have the program, although I do not use it much, I am amazed at the app every time. Aperture3 tethering allows to shoot and save to aperture, but it cannot fully control the camera through the app like ccp can.