I own a whole bunch of WD drives, mainly 400BBs, 800JBs, 1200JBs, a 2500JB, and a whole lotta 360GDs...
Not a sindle failure amond them, and none have gotten loud enough for me to notice. Then again, most of these are in server enviroments. The 360GDs in my workstation are quieter than my L1A @...