I want to replace my 3 year old drives before it's too late. I have about 200 gigs of data, split between a pair of Seagate Baracuda 7200rpm drives I bought 3 years ago. I am thinking on going with a single 500 gig drive for my data, and I can't decide between a Caviar Black, or a Baracuda 7200.12. I have read that the Caviar Black have incredible performance, , but only for the 1TB since it has 3 platters. How do the 500gig models compare between WD and Seagate? I just don't have the need for more. My OS and Apps are on the SSD at 23 gigs, and all the rest of my work/personal files take up about 200 gigs. Which is going to be better, the Black, or the Baracuda? 500 gig models only.