I'm currently putting together a new PC that is without a DVD drive at the moment and I need to create a bootable USB Windows 7 or 8 install using my new retina MBP with Mountain Lion. Is it possible to download the Windows 7 or 8 ISO and use the "Create a Windows 7 install disk" option inside Boot Camp Assistant? Will the bootable USB it creates work just the same on a PC? And does this tool in Boot Camp Assistant work with the Windows 8 Release Preview as well or only Windows 7? If that won't work is there a different way to create a Windows 7 or 8 install USB from within OSX that will work to install on a PC? At the moment I'm trying to avoid having to install Windows on my retina MBP just to accomplish this task.