Unless it's greatly changed since I last looked into it (ethernet over power lines) I think you are far better served going wireless KC. 802.11g is pretty darn quick with transfer rates of 54mbps - had a couple of laptops at my old job that had the 'g' cards in em (the back end was likewise) and they moved pretty darn quick - comparable to my LAN action
IMHO
/JD
And oh - by the way - can I move next door too?
dialup is killing me