Hi all, Just wondering if I will notice a big improvement between these 2 routers? I currently have a WGA11B wireless game adapter hooked up to my XBOX and it seems to always have a really bad lagging issue with the BEFW11S4 router. It also seems as though my newer Dell laptop always has a weak signal and it is used in the room right next to where the router is kept. Is it worth upgrading? Thanks for the help!