well i have a nintendo wifi usb connector
i stick it in the usb port on the computer and take down my wire walls etc so it can get through to my wii ( the wii has a wireless reciever to connect to the internet built in )
basically once you get this baby you can connect...just to to the wii sign in the bottom corner/go on wii settings/internet/choose your way of connecting/ connection test..........and it should say connection was successful.
Then go to wii shop channel to get voting channel, opera browser.....and also news and forcast channel will become available....
you can use a lan adapter but i would reccomend the method i just said.....
have fun and welcome to the forums