Q: To use Xbox Live and play with others all around the world and talk to other users I know you need an internet connection, but I was wondering if you could still use that if you have wireless internet, so basically can an Xbox 360 pick up a wireless connection to enable you to play online, or can it only be used if it's connected to your phone line?
A: 1) Yes, you can purchase a wireless adapter for your Xbox: http://www.xbox.com/en-US/hardware/x/xbox360wirelessnetadapter/. You'll then need to configure it in your console network settings.