This is a great site, been lurking for a few days now... I am putting together a new system and through an accident I have 4 HDD, 2x300GB SATA and 2x320 GB SATA II. The idea was a 2 HDD RAID 0 setup, but now I have a question. What would get me the best performance: - RAID 0 with 2 drives - No RAID, but WinXP Pro swap file on the non-OS HDD - RAID 5 with all four HDD (this is RAID 0 with redundancy, right? How's the performance?) - Another option, keeping in mind speed is the goal. Does RAID 0 really give that much of a performance increase? Any help will be greatly appreciated...I may just send two back and get some $$ back!