I've been looking for the best price/performance large capacity hard drive and have pretty much narrowed it down between these two. I can get the WD for $121 or the Seagate for $125, so they are basically the same price. I'm planning on putting them in RAID0 for a 1TB RAID array, so I'm looking for the best performer, and I know both of these companies are reliable. I've looked at both storagereview and the charts here, and neither one have both of the drives listed for a head to head comparison, so I'm perplexed as to which one will give me better performance. Acoustics aren't a big deal to me, I'm gonna have enough fans in my case that some HD noise isn't gonna kill me.