Oh for the love of Jesus... get it directly connected to your router if you can. Otherwise I never had issues with wireless on an Xbox, it's just a pain in the ass. I actually have an old Linksys adapter, but I hear the XBox adapter is perfect. As for eating your bandwidth, as long as your not downloading shit, it should be fine. If your browsing for walkthroughs while playing it should be fine. I did it all the time on my PC and internet was the same.