Brake upgrade-rotors too?
I'm a recreational biker who spends most of my time getting a little exercise on single tracks near my house or chasing my kids. Last year I got a 2012 Trek Marlin 29er and have been generally happy with it. My only complaint, which I expected from the reviews, is the brakes. They're outrageously noisy. So I want to upgrade. Two questions. 1) I'm looking at the Shimano deore 596. Is this good move? 2) Do I have to replace the rotors? Or can I just replace the levers and calipers?