The Official trailer for Valve's Black Box is online This pack is bundled with the new Radeon HD 2900 XT cards .

The trailer shows the game play from all three games packed in the Black Box, Team Fortress 2, Portal, and Half Life 2: Episode Two. It looks really good and at least that should help ATI to sell plenty of HD 2900 XT cards.

You can check out the trailer on Gamespot here.