‘Active Directory Friendly’ Storage Solution?

Good afternoon,

I am trying to find a solution to a storage issue I am having at one of my high schools. I need to have a place to store roaming profiles, folder redirects, general files, and the exchange store.

I was thinking of a Raided NAS, but do not want to have to deal with the issues of setting permissions every time I create new student accounts.

Are there any affordable (~$800) external solutions that would be Active Directory friendly as far as permissions and shares go, and that could be setup for RAID5? Both servers do have SCSI cards…

Thanks in advance!