I just replace both the rear wheel rotors and pads on my 2000 rx300. Purchased from O'Reily - everything was $118 Used the Wagnor rotors and the mid range pads with ceramic. Would have only taken 30 minutes but I had a frozen bolt on one side. Otherwise, a quick process. I'm by no means a mechanic at all. Of course, I had access to a lift that made it easy.