Thanks for the input guys.
I think I'm going to build my own NAS/micro-server. With it I can solve two issues with one box: whole house back-up and media server.
Any of you have experience using Windows Home Server? That's my likely OS of choice. If I could get the Netgear ReadyNAS software onto my own server I think I'd do it. It seems really simple to use and maintain. But I don't think that's an option.
“It is not our job to protect the people from the consequences of their political choices." -Chief Justice John Roberts, United States Supreme Court