Ethernet through power is a great solution. I've been a Ethernet person for a very long time, too. I have run wires through the attic just so I don't have to plug in a PCI or USB wireless adapter. I'm glad you found a solution, and also wanted to point out this I found recently, and have been looking into for my own home. It's a set that includes 3-6 wall modules that plug into power, each has a wireless emitting antenna, and a single Ethernet jack. You put one where the router is, and plugin the ethernet, then set up more around the house. Preferably one in each room. It's a little expensive, but seems to offer a better advantage over your standard WiFi router or Ethernet over Power.