If you pre-order Killzone 2 for the PS3 before 31/10/2008 you can get it for £31.99. If you miss the £1 voucher i am sure £32.99 is still a good price for this game.
First deal post, hope i got it right.
Thanks to crazygoog for voucher
On the lower left of the ShopTo web page in the "Information" window it says "Redeem Offer Code" All you have to do is enter shoptovoucher into that box and apply the discount. This then gets credited to your account - bargain! The initial price is £32.99, minus this £1 is £31.99.