now came out new d3100. with video recording.you may consider d3100 also. all the dslr are really good for low light. all the DX will perform almost as good as any DX format. d3100 low light performance is as good as d300s.
lens i could recommend nikon 35mm f 1.8g af-s dx. good for low light shooting. and the lens focal length is close to standard lens after 1.5 crop :thumbsup:
the new D3100 is upgraded version of the D3000, higher megapixel and a video function
the D3000 good when your on a tight budget but with a 10.1 mp vs a 14.1 mp ofcos the IQ in D3100 is much better but do reconsider this
both DSLR doesn't have IBM (in built motor) so you can't auto focus on lens like AF, AF-D, AF-G you only can use AF-S lens which can be quite expensive
If you are on a tight budget such that even the D3100 is out of reach, then I think a pre-owned D60 or a D40/D40X is quite sufficient for a beginner 1st dslr. You can get the cam & the std 18-55mm lens for $500 & less in the B&S. My nephew has the D60 & he likes it so much as it fits into his purpose & lifestyle that he wont even want a D90 from me free . It's less complicated, takes "brighter,more saturated" color pics off the cam, relatively lightweight & if I may say so quite stylish compared to some others The D3000 is less favoured & I know of some beginners who regretted having this model instead of saving up for a better one.
I am a beginner too and i am using the D3000, so far i am pretty pleased with it. it is light and easy to use with the guide mode. Do take note though that the pictures do get a fair bit noisy above ISO 800 and as i have a big hand, looking for a battery grip for it now.