Get Call of Duty: Black Ops on Preorder for £20 on Xbox 360 or PS3 for £20. It just worked for me:
1. Go to http://www.very.co.uk
2. Search for Black Ops
3. Add to Basket
4. Put these codes in at the checkout ZQ300 for £25 off and XV044 for free delivery
Order comes to £20
The delivery date obviously will be 9/11/10 because its a pre-order
Please be careful with the sign up process if you're a new customer since they will try to get you to sign up for a Very store card. If you look at the Payment Options section and scroll down there is an option to pay by card rather than sign up to their store card.
Please bear with me since this is my very first post on here!