Was in my local Currys today and picked up
The Club - £2.97
Frontlines - Fuel Of War - £4.97
Army Of Two - £4.97
Battlefield: Bad Company - £7.49
They had quite a few games at at £2.97 and £4.97, in addition to that all the games that were marked £9.97, £14.97 and £19.97 had another 50% taken off at the till hence why I got Bad Company for £7.49.
Obviously most are clearance games and they will vary from store to store but always worth popping in for a quick look.