So I'm looking to buy a new boot drive for my imminent Mac Pro purchase. I'm seeing many people on the forum opt for the WD Raptor drives. Is this wise? The Raptors only support SATA 1.5GB/s. Is it better to go with a 10k RPM drive at 1.5GB/s or a 7.2k RPM drive at 3.0GB/s? Which one is going to perform better for a boot drive? Another thing I see on the WD spec page for the Raptor is native command queuing. Does OS X take advantage of this?