This presentation will definitely make podcasting and screencasting scary for those who want to get started.
The first few videos of my screencasts available at rubyplus.org has poor audio quality. Don't let details take away your focus.
Here's the lesson from my experience: If you're about to start something new, don't spend weeks trying to make the first attempt perfect. Get started as quickly as possible and learn as you go. Tinker, experiment and look for the big things you can tackle as you go. Solve problems when they need to be solved and you won't feel as overwhelmed by all the things that could be fixed.
Last paragraph stolen from: Solve Problems When They Need To Be Solved