Pros:
Here's a theme based on the killer Half-Life Mod from Gooseman, Cliffe, Rze and the rest of the CS Team. There are two theme files to easily apply an 800x600 or 1024x768 JPG wallpaper image. Fitting cursors, game based icons, and sound files straight from the game make this package simple but effective. System logo screens are also included.

Cons:
Standard cursors and mono sound files.

Overall:
It serves the purpose and comes in a small file size so download at will.