Mike,
I just set up an EX485 and added 3 - 1TB HDDs (unit came with a 759 GB). Also bought a Popcorn Hour A-110. Moving all of my DVDs to the server and streaming through the Popcorn Hour. Very Cool.
Please understand I am particularly unqualified to explain how this stuff all works, most especially with networks.
Does your server support N routers?
Do you have Samba turned on in the Server?
Have you tried to map the Server as a network drive?
Some resources/forums that might be helpful:
http://www.mediasmartserver.net/forums/http://www.wegotserved.co.uk/ (scroll down on the front page on this one; they have an article on configuring your firewall)
http://www.mediasmarthome.com/ Hopefully something here will be helpful.
