Well, I was one of the only attendees hobbled with an APS-C sensor and an F4 lens for a nighttime shoot of a show where much of the action requires shooting at the 100-200mm focal range - so to get any kind of freeze of action, I was stuck shooting at ISO12800! I still found it fun to shoot and despite the noise and graininess, I liked some of the results. Sometimes noise just doesn't bother me that much, though it will be cool to see what the big full frame sensors and fast glass was able to get! Here's a shot of Indy running by torchlight:
