So I am looking to do a network upgrade and dont have the capability of running cat 5 cable. Currently have wireless G network however finding the network isnt adequate for HD streaming. My options seem to be to install powerline or wireless N. Wireless N promises 300Mbps and I have seen powerline claims of 85Mbps. One thing on powerline is do I need a pair for each device? One connected to a router port and other to the other device or can I plug one into the router and than multiples for each other device?