Setting up a NAS

[jkim05]

Thanks for all the help guys. I run a doctor's office, and we have ~10 users max at any time. We actually don't really have any sensitive data on our computers with the exception of our scheduling/practice management software, which we currently back up onto an external HD. Our technology implementation is actually pretty outdated, but since we have no need to upgrade, we haven't. My plan is gradually begin upgrading, rebuilding and/or replacing most of the computers in this office over the next couple of years and having centralized storage would make that much simpler as I would no longer have to figure out what data is stored on what computer.

As for size, I'm thinking 500gb in a RAID 1 configuration should be sufficient, though I'm tempted to go much larger. Is it cost effective to go much larger than that? Also, is it even worth it to RAID two drives or should I just go for external backup to the NAS?