The Orange Box is hands down one of the most awesome game packages I've ever bought. It's like you get a buffet of non-stop greatness.
First off, you get 5 games in one! FIVE!! And this isn't one of those cheap Atari Gems packages where you only get one or two good games and the rest are garbage. Each of the 5 games that come in the Orange box are stand alone titles and equally kick ass!!
Portal is a stunning game play experience that you just need to play. Like seriously I think every gamer should HAVE to play Portal. It blew me away.
Team Fortress 2 is Xbox live multiplayer greatness at its best and is hours of fun. That's all I can say about it. It's FUN 'R AN HELL!!!
And then on top of both of those sweet titles you get Half-Life 2, HL 2 Episode 1 and HL 2 Episode 2!@! They must have been sleep deprived when they decided to slap on the whole Half-Life 2 series (as of now) into The Orange Box. It's Crazy how much great gaming action you get in this package!!
So like go get it... If you haven't played Portal yet then that's enough of a reason to get The Box, but don't forget about TF2 and HL2 also!!!