basroil :
Ok, that better explains what you mean.
It all depends on use. If primarily all 6 devices always talk to all other 5, putting them on the same switch might be a better idea. If you have a server that needs outside access and the other devices just talk to the server but need to also allow full speed on the outside connection, 5 on the switch and server on the router.
Basically, you'll need to make a use graph with traffic priorities and then it should work itself out
"Independent" Devices to get hook by ethernet (all nearby) are:
1 -"Smart" TV
2 - PC
3 - Audio Streamer and music server
4 - Tivo
5 - Wall PLC device
6 - NAS
The router is also a wireless router (and is connected to a separate cable modem from internet provider).
Maybe I hook 2,5 and 6 to the (also wifi) router and the rest to the switch?
I would like the NAS to be well accesible from all devices.
2 and 5 are the ones that will get more frequent traffic, so I want these two to be as fast as possible. (the internet connection I have is really fast).