Zacuto DSLR Shootout (3-epsiodes video)
Extensive test of recent DSLR Cameras vs. an ARRI Film Camera by rental house Zacuto. Conclusion: DLSRs have way better sensitivity (for example for shooting with available light) and when DSLRs are going start to record in RAW (or in my opinion at least in 10/12bit ProRes), they reach the quality of film in dynamic range, too.
Summarizing article on Creative Cow: http://magazine.creativecow.net/article/dslrs-a-time-exposure

