Just make sure you read over your ToS for the \'net connection - because a lot of providers would frown upon the idea of you runnin\' cable to share the \'net connection in another house hold.
How far are we talkin\' in distance? Because both wireless and wired both have advantages and disadvantages. If you go wired, you have to figure out how much cable you need, a way to manage the cable, hide the cable and upkeep it. If you go wireless, you need a cerain distance, good line of fight and what not.
With all that said, if you do decide to go wired, I say go with \'E\' . Build for the future, Gigabit Ethernet is coming and you will need it eventually. But then again, I always say "build for the future", most people would say buy 1 gig of ram, I\'d say buy 2 gigs of Ram.
-shrugs-