Hi, I have recently got a new desktop computer. My brother also has a laptop, and the main computer has the internet. All up there are 3 PCs that are in this house. The modem connects to the main computer via ethernet. the main computer has two ethernet ports so one of them is taken up by the modem, the other is unused at this point. My brothers laptop has wireless, as does my new desktop computer. I have got a wirless router and an 8 port switch, as well as about 4 cables. Is there a way that all three of us can be on the internet at the same time? Is there also a way that me and my brother can connect even when the main computer is off? I am willing to buy new parts to create this senario. Thanks for your help in advance.