Well there's always the other way, if you ditch the caching......You could install the OS on the SSD, THEN set up the RAID. That should give the performance boost, and your OS should boot in no time! The only down side to RAID 0 is if one drive dies, you loose all your data, not just what was on the single drive. Though I suppose with the two drives separate, you can still have the SSD caching? It's kinda hard for me to figure out which setup would be best.