I'm currently running a 2x500GB RAID 0 configuration in my Mac Pro which I use for media scratch disk and such with Final Cut Pro. I was thinking of adding a 3rd 500GB HD into the mix and run it all in RAID 0. Is there any difference between the software RAID in OS X and a hardware RAID, like one made by Caldigit? I am thinking of using it as a capture RAID for capturing uncompressed video or capturing uncompressed and converting to a codec on the fly. Is there really any difference between running RAID in OS X than through a dedicated hardware controller?