Ok, I'm very curious to see what people have to say here. I don't know how many of you have ever tried this, but taking pictures at the Circus is a real bugger. Figure: Very dark with high-contrast spotlights and such. Inconsistent and rapidly moving light. Rapidly moving subjects. Generally quite a distance from your subject. Regardless, I was pretty pleased with the results. My goal was to get the best possible saturation of colors, low noise, and low blur as much as possible. Not ALL of the photos that I like fit all of these requirements, but these are the ones that I particularly liked. These were taken with a Nikon D300 and a Nikor 70-300 4.5/5.6 lense. All pictures were at ISO 1600 or greater, and most were at ISO 2000. I had the high-ISO noise reduction set to normal or high. I did make a point to attempt to overexpose the images just slightly to reduce noise on the subject of the shot. Generally speaking this worked pretty well, but it was challenging to get a fast exposure (to compensate for the long focal length of the lense and fast moving subjects) AND to overexpose the shot... even at ISO2000. I was terrified of going up to ISO 2400 because I know the D300 noise reduction starts to fail up in that area. Obviously, a faster lense would help, but I was very pleased with the results. This is actually only my second time using this particular lense. Not bad for a relatively inexpensive Nikor. Feedback welcome and appreciated. Don't hold back. I'll post the actual images in a reply to this thread so if you open this and see nothing, give me about 10 mins and look again.