If your a D-Link fan
DHP-1320 Wireless N Powerline Router
DHP-W306AV PowerLine AV Wireless N Extender
Dont forget to to use shopbot and get ME to price match
D-Link DHP-1320 Wireless N PowerLine Router Reviewed
D-Link DHP-W306AV PowerLine AV Wireless N Extender Reviewed
In case your wundering what the reviews for these are.. and no I havent used these yet.
My friend use the wired version of the dlink powerline for his xbox360 and he said it was great.. no lag..
It will be portable, just take it with you to any room and plug the adapter in... or you can buy another DHP-W306AV PowerLine AV Wireless N Extender and cover the entire townhouse..