I have the 475. It came with two 500 gig drives. I use it for my music files and Squeezebox Duet only. I'm enjoying this set up quite a bit.

The problem was / is definately my Norton's firewall. I had to go into Norton's and manually configure the server's IP address for file sharing on my network. Not sure if I did it write, but it works now.

What in the heck is Samba?

Have you upgraded the server memory yet? I think that's my next little IT project. The thing is painfully slow.