Hi folks, I am thinking of upgrading my hard disk and have a few options, but what would be the fastest configuration in terms of pure speed? Option 1: 1x Western Digital VelociRaptor 10000rpm SATA-II 150GB 16MB, or Option 2: 2x Seagate Barracuda 500GB 7200rpm SATA-II in RAID-0 I cant afford to buy 2 VelociRaptors and raid them together, and if I could I wouldn't need to ask this question. Both options cost about the same, that is 1 VelociRaptor 150GB for same price as 2 Seagate 500GB drives. I sincerely appreciate any help and advice. Many thanks, Shane.