I have a 240GB SanDisk SSD as my primary drive. I have a secondary 500GB drive I use for gaming storage, it's 7200RPM and it is SATA III. I have a third drive that's 160GB that I use primarily for storing game recording footage until after I render the final movie. I have a second 160GB drive that I want to use with the first one in RAID but I want to leave the other two drives (240 and 500) alone. I can use Dell's RAID utility but I know almost nothing about running drives in RAID.