Call of Duty: World at War Now on Steam

Valve sent word that the PC version of Call of Duty: World at War, which enjoyed excellent first week sales, is now available on Steam, their digital distribution service.
The World War II shooter can now be purchased and downloaded online through Steam for $49.95, the same price as buying a retail physical copy of the game.
World at War is also available on PS3, Xbox 360 and Wii, as well as on PS2 and DS.