For one dollar short of a full hundred bucks you can get a hold of Valve's entire back-catalogue of games, including their latest creation Left 4 Dead.
Valve: The Complete Pack includes 22 games like the Half-Life franchise, Counter-Strike, Portal, Team-Fortress 2 and more. Separately you'd be out $235, so not a bad deal then.
Click here to visit the official Steam Store for more information on The Complete Pack.
Source: CVG