Videographer Frazier Nivens has always impressed on me the importance of frequent white balance at depth, so to that end I dived with "white balance fins" all week, the white version of the Scubapro Seawing Nova:
http://www.scubapro....ng-nova?scene=2
White balancing to fin was a huge improvement over available light in my videos, as can be somewhat deduced by looking at these unprocessed screen grabs with available light still shots at 25 feet on a heavily overcast day.

I wouldn't call myself a videographer yet, but it was fun to play around. Now, I have to figure out what to do with the files!