I shot this today with a D70 and Nikon 35mm 2.0 lens set on aperture ISO 1600 aperture priority, and f/ 2.0 with the shutter speed around 1/125 spot metered on my son's face. I wanted a blurred background, so I put him in front of a bright window with white blinds and opened the aperture wide open.
It's cropped slightly. What do you think?