Nope, not a graphics artist. That's my bro and and he has spent well over 100k on his server equipment. Think this server cost us maybe 3k.
Don't think permissions will be an issue based on what you have written. We do have a domain, yes, but it's pretty wide open. As far as user files go, they are pretty much wide open. I suspect I would be ok attaching the enclosure to any client computer in the office and their UN + PW should be able to access them.
We don't really generate much new data/day. For the most part, we just modify client files that already exist. Pretty sure most of our archived .pst files are bigger than our data base files used by our agency software.
I think if we ever had to deal with a disaster restore, I'd make them buy a new server, load a new O/S on, re-install our agency manager software and then move all the client files into the folder they are normally stored. This is why I was wondering if the removeable drives could be accessed this way.
Guess there is really only one way to find out