I have a houseful (just ask my wife!) of film Nikons, but I lucked into an opportunity to do the photos for a book. Since the subjects will be transient (not transients), it will be hard to wait a week for film to be developed. This points me to digital, that I have little experience with. I had originally thought about buying a P7100 because it would be unobtrusive. My local camera shop said that the image quality would not be "book-quality", so now I'm thinking about a D3100 - small, light, & great image quality. Has anyone else had to make this type of decision? What are your thoughts? As an aside, anyone want to trade a D3100 w/18-55mm for a F4S w/ both battery packs, 28-85mm zoom, 50mm AF 1.8, SB-28(i thkni) strobe &'all boxes?

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