Present this voucher at your local EB Games to get $30 off the RRP of Assassin's Creed for PS3 or Xbox 360.
They have it listed on their website for $109.95, so with $30 off, you will be paying $79.95. This is comparable with what you would have paid for it during the Christmas sales when it first came out. So if you haven't already got it, now is as good a time as any.
nice deal =)