Just got back from currys where i bought Ratchet & Clank for PS3 for only £4.97. This was in the Liverpool store. Also has a few sing star games one was £4.97 and one was £9.97. They had a few other PS3 and Wii and Xbox 360 titles for cheap. This is a nation wide sale but depends what games your local store has.
Will post a picture later on as proof.
They also gave me £10 off £100 voucher.