Ok so turns out that was a red herring. I did find a way to install dfu-util, but doing so required X-Code to be installed (which in turn requires a $100 apple dev license). LAME. So I just set up a windows virtual machine on VMWare and that did the trick. :p Suck it Steve. In the end I did get it flashed and everything looks great! I say looks, because the dood at the electronics shop missed the din5 and audio jack on the BOM last week.
Gotta go pick those up tomorrow.
Next stop is setting up a linux machine so I can play around with building and modifying the code base.
I'd love to contribute to the project somehow, although I expect most of the programming to be way out of my league haha. Maybe with some enclosure enhancements though.
If anyone gets the firmware flash from OSX figured out I'd love to hear about it here.