I am considering the sonos products. My understanding is that one device needs to be connected to my router to create the sonos wireless mesh for other devices. However, on another thread I have read about the use of homeplugs - I assume this is power over ethernet / powerlink? I use the D-link powerline devices as I cannot get a wireless signal across my 3 floors. On each level I have set up access points for wifi. My question is: Do I have to buy a ZB to connect to my router as well as a player, or can I connect a device eg play5 into a powerline device remote from my router. This would obviate the need to get a ZB too. My router is in an awkward place so I would not connect a player into it.