Networking 2 Xboxes

Ok this is prolly an easy question for most of you, I just purchased my second XBOX and have setup both with the MN-740 wireless adapter and both are configured on my wireless network on 2 separate TV's, so I guess you could say the "hard" part is done.

Question number one

1. Do I need 2 copies of a game to play this so called "System Link"?

2. If I purchase an XBOX Live subscription can I use that on both XBOXES? Or do I need 2 subscriptions?

Thank you for your time.

 

1. Yes.
2. Only on 1 box at a time.

 

4 Player Halo, on 4 TVs with 4 XBoxes is the ONLY way to play MP Halo.

 

With beer and mates too of course

 

Obviously, I dont have 4 sets of hands.

 

WTF? Maybe thats why I can't pick up girls! Or maybe that's down to umm. "other" things...