You need to buy a ROUTER not a hub but a ROUTER it's pretty much a ethernet splitter plug in the ethernet cable from your modem to the router and then one ethernet cable from the router to each computer, get a wireless one if you have to go some distance but you would also have to buy a wireless adapter for the other computer that is away from the router.
Also change your nickname this is a basic question and KnowsItAll doesn't suit you---dont mean to be a dick but you sound like your mocking everyone with the name
ok so say i bought this::
http://www.newegg.com/Product/Product.asp?Item=N82E16833124010
would this be what i need?? what do i use to bring the wireless signal from the router to the pc?? it doesnt come with any antenna things that i shove in the back of the pc. where can i get those?Yes, that will work. You use the ethernet cable that came with your router to connect the WAN port on the router to the ethernet port on your modem.
If you want to connect wirelessly, you will need a wireless adapter for your PCs. For desktops, they come in two main varieties: external USB devices and internal PCI cards. Either will work fine; obviously the USB is easier to connect. Be aware, though, that the USB adapter will require a USB 2.0 port to operate at full 802.11g speeds. It will work with a USB 1.1 port, only slower.
That Linksys router you bought also has 4 ethernet ports on it, so you don't need to use the wireless option at all. So you can just connect your computers' ethernet ports to the ethernet LAN ports on the router and you should be good to go.
Follow the instructions that came with your router.
ah ha.. thanks for the info. so i cna either go wireless or ethernet cable with that router? awsome!