Good Afternoon everyone! I just wanted to share with you a little bit of my experience over the last few days. I recently upgraded my Nikon D3000 to a Nikon D90 (Mainly because of the CMOS sensor, High ISO performance, Bracketing, and some other minor features). And i must say Wow! The ISO performance difference between the D3000 and the D90 is huge. I just attended my little sisters confirmation ceremony at her church, and shooting pictures there was aways a challenge for me due to the very low levels of even light, and the hard focused small spotlights in the ceiling creating hard shadows on everyone. The D3000 Did well at ISO 100 and 200, 400 was only as needed, and 800 was only if your life depended on it. But with the D90 i was shooting ISO 800 - 1600 (Mostly 1600) all night with my 55 - 200mm 4 - 5.6 ED VR lens and got some stunning pictures! I will try to post some of them later tonight when i get home. Please comment your ISO experience if you are a fellow D90 user! Thanks Everyone!