Raid is all new to me but I would like to upgrade my velociraptors. I herd striping with two SSD'S is super fast. I currently have 3 velociraptors installed. Slot 1 is just for Apps (boot disk), Slot 2 are my files, Slot 3 is a backup of slot 2 (time machine). I would like to replace my boot drive (slot 1) with two SSD's under Raid 0. I still have one more slot left (slot 4) so I can installed two SSD's. Do I need a raid card for doing this? The Mac I'm installing into is a 2008 2.8 Quad. It's still pretty fast, but I need a boost. My plan is to get two 120GB Mercury Extremes.