This is a very thorough explanation. It also exhausts me to the point that I'm pretty sure I won't be doing it. I don’t think I have adequate software either. :(
Excellent tutorial, Frank. It was very well presented in such simple language that even I understood it. However, it is presently waaay beyond my capabilities!
http://www.dpreview.com/techniques/4314481850/looking-sharp-a-focus-stacking-tutorial