Rooz wrote:those hi iso pics using studio lighting are pointless.
well, that's debatable.... as you want to expose correctly for your subject (whether in bright or dim lighting), and if you have exposed correctly for your subject, what you want in your high ISO images is that the detail, colour saturation etc is preserved for your subject (especially the mid-tones), and you want to see how the shadow areas behave.
You can see the mid-tones and shadow areas in a well lit studio shot - of course it's just that in a dim lighting condition there are more shadow areas (and a lot of the problems people find with 'noise' is that they underexpose their images)
Anyway, here are some more sample ISO 3200 shots from the D300, not taken in a studio (first 3 pics)
http://flickr.com/photos/67259882@N00/