I'm thinking about ordering a Western Digital Caviar SE16 WD6400AAKS from NewEgg. It's their top-rated hard drive in its size range, and it just went on sale for $99. Before I pull the trigger, I just wanted to make sure it will work with my Mac Pro. Gonna use it to upgrade the primary drive. I'm running a quad core 2.66 GHz, that I purchased last February. So it was before the most recent round of updates. Any reason this drive might not work, or should I be okay with it? Thanks.