Had a chat with Ivor at a London dealer and he asked me for my DL4. He showed me what the film grain scene mode does and I really like it. It sets the camera to ISO 1600 and 3MP and produces pictures with a lovely grain.
This was taken when I got home. Nothing done except resizing and sharpen with WebPresenter Pro (please ignore the cluttered background, I just wanted the window light!):
I have never really taken the DL4 off A mode really and haven't used any scene modes. I might start using this one though. ISO 1600 gives some good shutter speed in low light too :-)