You need pay only for the adapter. If you have a wireless router you will not have to pay to anybody for your WiFi. But you still have to for Internet.
You need an Xbox wireless adapter.
Yes.
An ethernet cord to connect the XBox to a router or the wireless adapter for XBox to connect to your wireless router.
Your router WILL need to be wireless to connect wirelessly to your Xbox, but you can use an ethernet cable if your router is not wireless, straight from the router to the XBOX
You don't. If you have the new Xbox 360, you don't need a wireless adapter because it has built in wifi. But if you have any other Xbox 360 console then you will need a wireless adapter.
No. A WiFi Router is not needed to use a WiFi USB adapter. You just need the internet and a compatible PC/Laptop like Windows XP / Vista. Just plug the USB in while you have the internet running and you are on WiFi.
you ether need a Nintendo wifi usb connector or a wireless router.
yes you do or if you have wifi you can buy a xbox 360 online adapter and do it that way
Computer, modem, router, ethernet cord or wireless adapter, xbox, and a membership.
No. If you have the new Xbox 360 S, there is a built-in wireless adapter. The older models have not and therefore you will need to buy a wireless adapter.
well, you need a router or a adapter first, then go to connections and click wired(adapter) or wireless(router) and test it, if it works,well,you have Wi-Fi!