So our main MP system, 2006 2 dual-core 2.66GHz, is getting a flashing folder with a question mark when it boots every now and then. The hard drives have not been replaced for years and it seems like it is because the boot drive is failing, so obviously we need to replace it. We also have 3 1TB drives in the other slots on a RAID 0 for holding all our footage. My question is what would be the best way to replace the hard drive without buying an external enclosure for the new drive and without messing up the RAID 0. Would taking one of the drives out to make room for the new drive be OK while leaving in the other 2 drives? Or would it be best to take out all drives except the boot drive, put the new drive in slot 2, and boot from the SL disc to copy everything over using Disk Utility? My biggest concern is just not messing up the software RAID.