The image does not look very innovative, but taking it was a lot of fun. After the obligatory "dancing book poses" the models got more relaxed. As always, the really interesting photos are taken at the end ("hey, there are some megabytes left on the sdcard, let’s try this…").
Strobist info: Octabox camera left (very close to the middle), one striplight right of the models, one SB-600 from the upper left corner of the background.
Camera Model: Nikon D90
Lens: Nikon AF-S DX Nikkor 18-105mm 1:3.5-5.6G ED VR
Focal Length: 24.00 mm
Focal Length (35mm Equiv): 36 mm
Exposure Time: 1/60 sec
Shooting mode: Manual
Exposure bias: 0 EV
Image at flickr, large version