Good summary oldskool. I was just trying to keep things simple.
rappar - If you're looking for options there are a number of solutions out there.
There are smart NAS solutions from DLink, Synology and Buffalo to name a few.
For streaming solutions there's Sonos (which is not cheap but is very user friendly), Squeezebox and AirPort on the more cost effective side.
My personal setup is a D-Link 323 with both DLNA and iTunes servers running. I use the iTunes server for my Macbook and the DLNA server for my PS3 streaming. I also use the Sonos system for audio streaming to various points in my house. Took me a bit to get everything working 'just right', but it's a great setup now.
Cheers,
