UPDATE: Microsoft has told Eurogamer the new 320GB Xbox 360 hard-drive costs £79.99 in the UK.
The console manufacturer noted it is the same price as the 250GB HDD - currently.
ORIGINAL STORY: Microsoft has announced a new 320GB hard-drive that works with all Xbox 360 S models.
It costs $129.99 in the US. We're chasing UK pricing now.
The hard-drive also includes an Xbox Live download code for Lego Star Wars 3: The Clone Wars - except in Japan, Saudi Arabia, Slovakia and the UAE.