Nikon SU-800 Three-Speedlight Test Image:
Nikon D7000; AF DC-Nikkor 105mm f/2.0D
I just ran out and bought two new SB-600s, and set them up to complement my SB-800, which was used as the primary key (bounced). The SB-600s are used as a kick and as a background special. The SU-800 made this a super easy set-up:
1. SB-800: assigned to group 'A' at 0.0 EV, bounced into 30" x 50" Foamcore.
2. SB-600: assigned to group 'B' at -0.7 EV with daylight hard gel.
3. SB-600: assigned to group 'C' at -0.7 EV direct, w/diffuser.