I recently went through the hassle of upgrading my MBP 13" with WD Scorpio Blue 1 TB drives and got vibration and clicking due to conflicts with the Sudden Motion Sensor in the Mac and the ShockGuard in the drive. I really want to upgrade my drive to at least 500GB. What drive out there is reliable and doesn't have shockguard/SMS that could conflict with the MBP's SMS? I was thinking maybe the stock drive? I wish I could go for a 750GB drive but so far I only see WD has it. Thanks!