Basically, is it possible to run that application which allows me to install PC games on a Mac onto an external hard drive? And then is it possible to install a game onto my external drive using that application? I hope that makes sense, if not ask and I'll try to explain better. Edit: The application I refer to is Crossover Games. I want to install Crossover Games onto an external, then use that to install games for my Mac onto the same external drive. Possible?