Lost Planet: Colonies for X360, by Capcom. About a 80% on Metacritic. This is the classics version, obviously because it's the 'Colonies' version. The PS3 port doesn't have Colonies expansion pack, neither does the non-Classics version of the game.
Next cheapest I think is GAME.com for about £9.73 or so.
The Hut now has a rewards points system called iPoints, which equates to about 2.5% return value.