Thanks for your thoughts. Yeah that is exactly why I am looking for a new solution.
I have decided to go with an 8 bay SAS enclosure with 8 Seagate Constellation drives running RAID 6. This should give me two drives of parity for backup.
I would imagine I would be okay with the speed of RAID 6.
If I understand RAID 10 correctly with 8 1TB drives, RAID 10 would give me a net 4TB's? Which would actually be under 4 in the system.
Not sure that is enough space for me.