One of my customers is getting close to filling up their server. I was
thinking of using one of their older computers and build a NAS with
mirrored drives. I would like to use SuSE 11.2 as the OS. Now I can
setup Samba and do a net use in the login script or better yet set the
file system to NSS and use map root. This box isn't going to be doing
anything else so simpler is better.

What do you think?

I'm thinking NSS is part of OES so I may be out of luck there unless
there is a way ...

If this is straining the cranium, try duck liver soup.