“Groovy Motherfucker”

Wine for OS X and Linux especially designed to play graphically-intensive Windows games. The Orange Box and its contents are supported, and Audio-Surf ran OK for me, with some minor resolution-based oddness. Not sure it’s worth $40, though, when I can just reboot to Boot Camp.

Automatically downloads, installs and runs the Windows versions of IE natively on OS X using Darwine.