Nintendo DS : Harry Potter And The Deathly Hallows: Part 1 for £12.99
think cheapest around, Argos trade for £20 (20/12/2010).
Also 2% Quidco too
The wand is the ultimate weapon: Hold nothing back! Unleash an arsenal of formidable magic to defeat attackers, protect yourself from harm and evade capture.
Deadly enemies lurk around every corner: Fight Voldemort's minions, including Death Eaters, Snatchers and Dementors. Overcome a host of fierce creatures attacking on instinct alone. No other Harry Potter game has had this level of action!
Become a master in stealth: Use the Invisibility Cloak, Polyjuice Potion and Peruvian Instant Darkness Powder to avoid detection and sneak past adversaries.
Unique cover mechanics: Use magic to create and wield cover. Utilise the environment to make shields out of trees, tables and statues, and then throw them at enemies, turning defence into attack.
Powerful potions: Find and trade goods for potions that can be used to attack, escape, restore health or increase your luck.
Out of Hogwarts and on the run: Your dangerous journey takes you through a host of new environments, from city streets to remote wilderness areas, to new and iconic wizarding locations: each presents different enemies to fight, challenges to uncover and quests to complete