Download CAD Standard Lite for free here, and I'll send you a file to use to set up your settings. You're doing great by hand! A wise man told me half of the success of the knife is in the design.
You also learn what you can do with your tools. Since you and I don't have our own waterjet, laser or CNC machine at home, its important to know what you can and can't cut with a hacksaw. I wound up having to modify my first design to accmodate the limitations of my tools.
Chapnelson, If you have a template to get started with CAD Standard Lite, I would be interested in it too. I've been trying to find decent free drawing software to work on knife designs, and haven't had a whole lot of luck. I've tried google sketchup and inkscape so far, but really haven't had much success with either.