we're buying a house!
I failed to notice exactly where they have their set up right now- wireless modem noticeable in the dining room closet-office/office-closet.
we don't want to start punching Ethernet jacks all over the place and running wires... but wireless can't do everything we do- streaming through the game consoles works better wired, so we have a necessity for Ethernet connections.
Powerline adapters. $135 total from amazon
Linksys Powerline AV Wireless Network Extender (PLWK400)
Linksys Powerline AV 4-Port Network Adapter Kit (PLSK400)
still researching, but this is pretty cool.