I am a system builder. In the past couple of months I've had 5 hard drives bite the dust (Out of 30). 4 crashes were new Samsung 7200 60GB and 80GB drives. Diagnostics showed physical defects. I switched to Western Digital 40GB and 80GB 7200 8MB buffer drives. A 40GB WD crashed yesterday - also physical because it's clicking. Is this just incredibly bad luck? I use all static precautions and treat the drives gingerly while preparing and installing. Any ideas?