OK, I am hearing claims of very good results when using D7000's at hi ISO's (even ISO 1600!). I have mine set to 'Auto Active D Lighting', 'normal Hi ISO NR' and 'Long exp NR on' and find that low light work makes me really want to keep it at ISO 100. I tried some ISO 1100 shots in London on Friday night and the detail on the buildings was broken up waaay too much, and the colours go dead too. Even ISO 400 is not great. I am also noticing colour banding when shooting bracketed sets against a sunset, but maybe I am greedy going for 2 stop increments maybe 5 shot bracketing is the minimum Nikon should supply - 3 is no good in high contrast scenes). Boosting the ISO in decent light for fast action is one thing - I am talking low light.
How do yous guys get best results? Please feel free to post pics with links to high-res versions so we can see. Remember this thread is D7000 nothing higher will help!