I'm looking to build a fast RAID 0 or possibly 0+1 array with either 400GB or 500GB Hard Drives. At this point I'm thinking Seagate 7200.10 drives due to the warranty, but are there other drives that would be faster in Raid? The others I've looked at are the WD SE16 series and the Hitachi 7k500 series. I've seen people say that the bigger the hard drive, the faster, but I've also read that the more wasted space per platter the faster, which would indicate that the 400GB would be faster. 800GB is going to be enough for now, but if it would be a little faster I think I could rationalize going with a 1TB Raid array...plus it just sounds so much cooler. Thanks for the input, I'm just wondering what drives are going to give me the best performance.