I have a Nikon D300, had a D50, D70,D80 and a D1h. For low light shooting its hard to beat the D1h. Low MP but in a pro body you wont be able to tell if you stick to nothing bigger then a 8x10. The D80 is a great camera also, but like the op said you need to buy some good glass for it. The 80 you can use most all of nikons lenses, the D60 you can only use AFS lenses, so you dont have as many to pic from and the prices can get real high on some. I might stay away from the 18-200 because its not so great in low light, slower is the main reason. Look for glass in the 2.8 or faster range.