Basically I need a large storage option that is set up to be resistant to loss for my high def video and images. My 500 GB iMac is full to the brim but I don't want to spend 5-800 dollars to back everything up. I have a 500 GB time machine that is also full so I assume it's just erasing old records with new as we go along now. I want to purchase 4-5 of the lacie 1TB drives and set up a RAID array external to the iMac. Can I do this? Is it a process a computer novice can do? If I got 5x1TB drives and did RAID 1 or something I would have 4TB of storage and one drive could die and still maintain all my data? Is there a better RAID version like RAID 6,10 etc...?