I have set my D800 up with Quality Priority Medium size Fine JPEGs. This nearly matches (in my tests) the size of the best D600 JPEGs my second shooter will be using. I will be using this setting at the next Event. Most of the buyers have either gotten 8x10 prints or ordered "FullSize" JPEGs from 12 MegaPixel cameras in the past. This should still be a big improvement in Image Quality. And working with 20MB files on the computer is a lot easier than 30MB.