I thought these games are very good value, so i thought i'd list them, Cal of Juarez has just recently been released and is available for just £27.06 after the 5% vouchercode and if you also go through Quidco, you'll receive another 5% cashback, making it just £25.70 delivered.
I also listed a deal from shopto, if you want Mario Party 8 now but for a little more but if you prefere to get the cheapest prices and receive it for the release date, then you can't go wrong with this deal.
It's available for £26.11 after the 5% vouchercode and go through Quidco to receive another 5% cashback, making it just £24.80 all inclusive.
I hope that helps. :)