Meph, I'm sorry, but I can't even watch that video for more than 30 seconds. Everything hurts my ears. You're voice is getting somewhat distorted from bad mic quality and the keys making noise is intolerable. These just cannot be the tutorials for AAO because it gives us an awfully low quality standard right off the bat.
If you can do the commentary in post, when you don't have to type, then that would improve quality about 20 fold right off the bat. But even then, I would look into getting a new person to do the commentary tracks for the video because of mic quality. A good, clear voice will turn the reaction of someone watching from "I don't know about this" into a "Yeah, I think I may give this a try" due to quality of the presentation. It would also make the learning process much easier.
A post-commentary version of this would be pretty easy to make, and may even be quicker to make than what you have to do now because of limited time. Basically, I'd see you (as someone who knows what he is doing in the editor) recording the topic of interest, and writing a basic script of what needs to be said for another person to read out. This can even be as simple as just writing down notes of what steps need to be taken, and then expanded upon by whoever is reading out the script themselves. You edit together a muted video, commentary track, and maybe a small bit of music in the background, and you got a much more solid tutorial for consumption by the public. As for the quicker to produce idea, I would think that it would be easier to just open up the webcam, film the screen for a bit to get all needed footage, write down some notes on the subject, zip it together and send it off to another person than waiting for the entire house to be empty. So I would think it may work a bit faster.
Unfortunately, I don't think the quality could be up to the standard of the editor's tech unless it is done in post. But I hope that you can consider the idea, as it could make things quite a bit easier on you, and create a better final product. And since I just complained and insulted on something that probably took you quite a bit of effort, I have to say that it is a very good idea and that I'd be open to do the voice over and editing for you. It's much, much easier to record 20 minutes of solo commentary than to arrange a 4 person, hour long podcast, after all.
Wouldn't take too much time or effort out of my day should notes be given telling me how to actually do the actions.
(And I'm only complaining because video tutorials would help SOOOOO MUCH if done well. Actually seeing someone do more complex commands over just reading about it? Yes, please!)
Anyways, that's my two cents.