I used to have 160GB 5400 HDD untill today's morning.. Now there's WD Scorpio BLue 500GB installed in my MBP. And I can hear some silent noise, coming from that HDD. I mean my previous, low-capacity 160GB Hitachi was just silent (no noise at all!!) Is there anything, that can be done about it?? I mean if I had known, I should've gone for 7200.4 500GB Momentus!! I still hope there are some tweaks, that can silent my HDD... Are there?