Pretty much decided to buy a SONOS system after my Arcam CD73 gave up. Thinking of going for a ZoneBridge to connect to my router/PC which is located in a spare bedroom witha CR200 controller and ZP90 to connect to my hifi/home cinema setup in my sitting room, can add other zones when/if I wish to at a later date. Not sure which NAS to go for which I will also locate in the spare bedroom. Was looking at the Western Digital My Book World Edition II 2TB, any thoughts? I also have a PS3 so could use the NAS to stream video to my PS3 in the sitting room.