I'm moving to uni in about a month, and there is no wifi there, only an ethernet cable in my room. My question is - can i plug the ethernet cable into my macbook and broadcast a wireless network from it? I know you can make a wireless network on a macbook, i've done it before, but i want to broadcast the internet over it. I want to be able to use my iPhone on wifi, cos I don't wanna go over my allowance (damn o2). Thank you for any help.