Hooking up logitech z560s or altec lansing 641s to an xbox

[k900]

Anyone know how to hook up altec lansing 641s or logitech z560s to an xbox? I'm going to purchase one of these sets of speakers tonight and can't decide which one to buy. Would one be better suited for xbox? Would either work okay? How would the positional audio be in a game like Halo?

Thanks,
Kevin