My basic setup is a couple of Nikon sb flashes, one sb700 and one sb600. I bounce both of these into umbrellas in order to diffuse the light and get a nice even lighting over the entire set. I use a shoot through umbrella and a black backed bounce umbrella, and the reason these two? Because it's what I have of course! If I used studio lights it would become much more complicated and require cables running electricity around for people to fall over, it wouldn't be as easy to unpack and pack, etc. Here is a pull back pic of the entire set-up:
There is a very large skylight directly above the area where we are located and the light coming in is constantly changing because of the sun moving, clouds, rain, etc. so in order to keep the light and colour consistant I totaly underexpose the scene by setting my camera to manual at 1/200s and f11. Without flash it looks like this:
My flashes are set to TTL and they automatically bring the exposure back up to normal. I fire them wirelessly via Nikons very cool CLS system. The final result looks like this:
Perfectly exposed, sharp, and with very consistant colour! I don't have time to download these to a computer, tweak them and then print them, so I shoot jpg and make sure that all my settings are correct in camera to achieve the fastest workflow and print them directly from my SD cards at the lab in the mall. The resultant prints are just great!
So if you want to put that nice shiny new dslr to good use and actually make some money to justify the expense then you now know how to do Santa pics for Christmas 2012! Whoohoo!