I am thinking about adding two new Hard Drives to my Mac Pro, probably 2TB drives. I am looking for quiet performing drives with low failure rate and good performance. I have two Seagates, which have been very quiet and good performing drives, but one has just failed, after about 2 years. I did see some users comment on this board that the Seagate drives are prone to quick failures, but it took this happening for me to realize this. I am thinking about Western Digital, but I might go with Hitachi if they make a quiet drive. The factory drive in my hex-core is a Hitachi and it is NOT quiet, it is very loud. Any recommendations or advice would be much appreciated. Thanks!