I have a macbook (osx) and a pc (windows xp home) and I want both of them to have a cable internet connection. I was able to connect both successfully to the internet using a belkin N150 router with my road runner cable modem by having the desktop pc hard-lined into the router and the mac book connecting wirelessly, but the macbook is SUPER SLOW. The only was to achieve good speed on the macbook is when I use my Airport express and connect through that. My question is: Is there a way to connect both computers to one cable modem but with the macbook using the airport express? Or is there another way for the macbook to achieve the same speed as the pc without using the airport express?