Blockbuster have started a sale today featuring almost all of their new and used games. Didn't have a huge amount of time to look but Gears of War 2 is defintely £19.99
these are preowned games
The other two titles headlining the preowned games sale are:
Fifa 09 for £14.99
Need For Speed Underground for £14.99
...Others that stood out were Assassins Creed £4.99, GTA IV £7.99, Halo 3 £7.99 Battlefield £12.99, Dead Space £17.99, Far Cry 2 £17.99, Lego Batman £17.99, Fall Out 3 £17.99
All these were on Xb360 & PS3.
Oh, and Metal Gear Solid 4 for £12.99 ....Steal!!!!!!!!!!!