Showing Key Presses During Video Tutorials

Because I've been teaching software to beginners for so long, I tend to favor a highly visual working style. I never use the keyboard command, I always go to the most obvious icon or pull down and use that. Even when navigating in the C4D viewport, I'll find myself going to the icons in the upper-right hand corner. Not because it's faster, but because my students will be more able to follow along while watching. Unfortunately, this isn't the most efficient way of working. I've been trying to find a method of showing my key-presses on screen while I make them for a while now, with no luck. Enter "key-mon" an open source tool for displaying keys on-screen as you press them:

Pretty nifty. Unfortunately I've yet to get it working on my OSX or Windows Installation. Once I do, I'll give you full instructions.