This is a great series that compares a sampling of the current crop of HDSLR cameras to film. Part 3 is up that covers keying, simulated raw and frame blowup as well as a couple of shorts shot on HDSLR.
If you are at all interested in the future, these are a must see. Highly respected industry professionals share their insights with the results as well. These videos can be a bit talky at the beginning but if you let them queue up a bit you can skip that.