I recently bought a Western Digital 320GB Scorpio, Black (7200rpm) replacement drive for my Macbook Pro. The install was straight forward, but once I fired it up, I notice the laptop case vibrating, where both of your hands rest (the right side, not quite as much as the left due to the harddrive being under the left side.)
I tried to re-seat the drive and made sure it was installed just as the original fujitsu was using the rubber gaskets that were attached to it.
I am not noticing any humming or any sounds as other people have mentioned with new drives so I am wondering if the 7200 rpm drives just cause more vibration than the 5400 rpm ones and I have to either live with it, or get a 5400 rpm drive so I don't feel it.
Anyone have any ideas and thanks in advance for all suggestions.