Great price for this game, which has now been reduced to just £17.99 including delivery and you'll also receive 11% cashback if you go through Quidco, making this just £16.01 all inclusive.
Hope this helps. :)
They also have Fight Night round 3 on the Xbox 360 for £17.99 (£16.01 after Quidco), which is the same price as Play.com and HMV but Gameplay offers a much higher cashback rate, making it better value and don't forget that Blockbuster are willing to trade this is in, so you can buy any preorder for an extra £10.
Also Need for Speed Carbon for only £14.99 making this £13.34 after Quidco, which is a great price for a very entertaining game.
Nintendo Wii game GT Pro with the wheel attachment is also available for £14.99 (£13.34 after Quidco) which even though it's not a great game, that's great value and can probably be sold on for a higher rate.