What Norton Product for Wndows Server 2008

I work in a printing company and we have 2 networks one with internet and email and one that is strictly local with no internet or email.  We have a file server running windows 2008 that will now be connected to both networks BUT....this file server has all the live jobs and other crucial files that we simply connot leave unprotected. What Norton product would be best for protecting our Dell Poweredge T310 Server running Windows Server 2008.

Norton products are consumer grade. It sounds like you need to look into Symantec products that are better suited for your needs.