Ronald Moravec , May 25, 2008; 03:42 p.m.
Nikon D80 for $729 and a fast prime lens. D300 will do better at $1800. The D80 is at the end of its life cycle and is priced right.
D60 is small, new, and will be fully functional with any of the older lenses so you are stuck with buying new immediately loosing the initial cost savings. There are no fast primes fully compatable with the D60 except Sigmas which I do not recommend.
Don`t know a thing about Canon except there is no significant difference . You are looking at consumer Digital Rebel or semi pro 40D.