Good, fun looking project, thanks! And funnest thing about it is it isn't going to break the bank like a lot of recommendations I see here! I can already see where I might want 6, or 7 of them...
So, do you think the Pi with a few TB of disk [uSB connection I guess] and a wireless connection [another USB device] could handle itself as a DLNA server/NAS? And in our house it would need to handle 1080 video and 24 bit/192 kHz audio.