The adaptor for wireless is $80+ and of course you will need a wireles router (about $30), aswell. However, while I was playing Gears of War, a popular game on the 360, I was told if you already had a laptop (with a wireless adaptor), you would not need to purchase an Official Xbox 360 Wireless Adaptor. Instead, he claimed, he used his Laptop to output, or rather, split, the wireless signal to the Xbox 360.
To do this you must have a laptop recieving wireless internet, and an ethernet cable. Plug the ethernet cable from the laptops port to the Xbox 360's so they are connected, sharing a connection. Now all you have to do is go to (on your laptop, if it is wondows, I'm not sure about Macs) Control Panel -> Network and Internet Connections -> Network Connections find your wireless connection, right click it, and click "Bridge Connections".
I was surprised this was so easy, I ran wires all the way from the second floor of my house to the basement so I could get onto Xbox Live, but I would never have if I knew I could use this much easier method instead. However, I'm guessing my wired connection is probably more clear than a wireless connection would have been since my wireless router has a weak signal. I hope this tutorial helps some people out, Good Day.
Ill have to try this later! Thanks!
