Try RMPrepUSB - this will partition and format your drive, install grubdods, allow you to make a menu.lst (press F4), extract ISOs onto the USB drive and test booting under an emulator. It will also test a USB flash drive, measure it's speed and make an image backup of a drive, install syslinux and more! The website has over 50 tutorials and several YouTube videos.
www.rmprepusb.tk