My brakes have been screeching lately as I come to a complete stop. I had first attributed this to low use (as many others experience on the forums), but today as I was rolling into my work parking lot I heard a steady metal on metal sound, reminiscent of.... worn brakes! 1.) Can I do this myself? How? What pads do I buy? 2.) If I can't do this myself, anyone have a cost guesstimate? I can't find any threads where anyone did their own brakes because everyone is under warranty around here, so any info is helpful.