All preowned games are buy 2 get 1 free in Smyths at the moment. I got the following on PS3:
Orange Box - £7.99
Armored Core 4 - £7.99
Tiger Woods 08 - £7.99
All for £15.98!
Other PS3 titles included Tony Hawk's Project 8 for only £4.99. This deal was for all titles on all platforms, as long as they are preowned. I got these in Charlton, hope this helps someone! :-)