I have been using my Airport to get other people's signals in order to get online. I have been told by my ISP that I need to go buy a wireless router and then get back in touch with them and be added to the network in order to get on the signal here in my own apartment. I am paying for internet, and would like to use my own signal..ok makes sense so far. The guy told me a router would cost about $20-$30 for a Linksys router; I looked one up on walmart, and there are several kinds and they are more than what he told me. What do I get for this to work?? We have cable internet here. I do like being able to go anywhere in the house with my internet working, but it looks like with that router it plugs into my laptop and I can't walk around with. I am so confused. Please help me figure out what I need and what works on an Apple! Thanks in advance.