I got The Orange Box today. I heard it was a great game, and since I do like shooting games, I figured it was worth getting. All I can say is that it's an awesome game.
The best games in The Orange Box are the Half-Life 2 games. After playing them, they are some of the best shooters I've ever played. Graphics, controls, and sound are all very well done in the Half-Life 2 saga.
So it's a pretty sweet game. I recommend you check it out.