One day Zavvi sale, not sure how good the bargains are yet, just thought I'd post early.
I bought a few Xbox games from them last year. The service was good and delivery was only £0.99, not sure what it is now.
EDIT:
some suggestions:
The Raid (Blu-Ray) - http://www.zavvi.com/blu-ray/the-raid/10613540.html
God of War collections 1 - http://www.zavvi.com/games/platforms/ps3/god-of-war-hd-colle…
God of War collections 2 - http://www.zavvi.com/games/platforms/ps3/god-of-war-hd-colle…
Hitman HD Trilogy for PS3 and Xbox 360 is a good bargain. roughly 15 AUD - http://www.zavvi.com/games/platforms/xbox-360/hitman-hd-tril…
Commenting to remind me to check this out.