Help, ASAP! (Xbox Heads, Inbox Me!)

Right, for some of you that that don’t know, my neighbour gave away his Xbox 360 Arcade for me to keep for free as he no longer uses it. I don’t really play computer games much nowadays (I’ve stopped playing a lot around the Playstation 2 era) so I’ve let my younger sister use and play on it, even keep it in her room but what I want to do is to set up a Live Gold account so I can play against my lot and keep in touch and play against some of my followers.

I can get some games to play online later on but for that to happen, I need to know what I need, like wireless adaptors, hard drive, any cables to connect or something.

If anyone can inbox me, then that would mean a lot as I can go out to get the things I need maybe today or tomorrow.