This might benefit anyone who's thinking of purchasing any of the PS3 deals at Argos.
PS3 250GB plus FIFA World Cup = 269.99
PS3 120GB plus FIFA World Cup = 239.99
HOWEVER, by chance I realised that if you add a further copy of FIFA World Cup into the trolley it will only cost you £16.75. So in essence you've got 2 copies of the game for £8.38 each. Nice!