Half-Life 2: The Orange Box
Once again players assume the role of Gordon Freeman, a scientist destined to save the Earth from hordes of gruesome alien attackers. Valve has created a fully realized world in Half-Life 2, with objects and characters that feature accurate physics properties, behaving with the appropriate mass, density, and physical properties of their real-life counterparts. Extremely intelligent computer AI result in enemies that plan, adapt, and respond to the player's actions.
Following on the heels of the similarly-titled next-gen console edition, this package is a near-complete package of the Half-Life 2 phenomenon, packed with bonuses in addition to the genre-expanding original Half-Life 2 game. Half-Life 2: Episode One and Episode Two add-on levels are also on the disc, as are the stunningly complex puzzle game Portal and the online phenomenon Team Fortress 2
Half-Life 2: Episode One
Half-Life 2: Episode Two (new)
Team Fortress 2 (new)
Seems like a good price to me :)