I have the Sonos system and absolutely love it. I purchases 2 Dlink DNS-323 NAS enclosures and put 2 X 1TB Seagate drives in them. With all of my music residing on the NAS(s) I don't have to have my computer turned on for me to listen to my music in my HT room or my kitchen, or den, or bedroom etc..

Works like a charm... yes it's a tad pricy .. but worth it in my opinion.

Acoustic Zen Adagio, Veritas center, Axiom EP500, QS8s, Anthem AVM20, MC20,Adcom GFA7400