[winders]

Originally Posted by Scott Douglas

Ken Rockwell's analysis found here:

Nikon D7000, D300, D3 (D700) and Canon 5D Mark II High ISO Comparison

was helpful in my understanding of the 'why' to some of all this.

Rockwell is an idiot that doesn't touch half the equipment he claims to and only wants you to buy stuff through his site. No serious photographer listens to anything he has to say. Well, they don't give any credence anyway.

This site is much more accurate and useful:

Cambridge in Colour - Photography Tutorials & Learning Community