Cheapest i've seen MW3 delivered and their pre-owned games from past experience are in good condition:
MW3 PS3 (pre-owned): http://www.ozsave.com/ps3/games/call-of-duty-modern-warfare-3-ps3
Saw this on ozsaves facebook page first, its delivered digitally.
12 month ($38.99): http://www.ozsave.com/xbox-360/accessories/12-month-xbox-live-gold-membership-subscription-xbox-360
