Although I have not taken many pictures yet with the D300, I happened to be at TSC during a Kings practice. Unfortunately I only had my 50mm lens with me. I shot this picture though the glass. While nothing special, it gives you an idea of what the camera can do under the lights at TSC. This was shot at ISO 1000 at 1/800 sec., F2, recorded as a jpeg on "Norm" setting.
Here is a full resolution crop of just the goalie's mask, to give you a better idea of the image quality.