The learning continues....I have had some time to play with Audacity on my PC. I recorded a short blurb about the podcast and then took some time to play around with it. The 'playing' is all about making mistakes and discovering how to do things like making my recorded audio sound better, how to add some music fading in at the start, and fading in at the end. Not sure if that is the route I will take but it is good to know how to do it.
This is what things look like at the moment:
Here are some YouTube clips that helped me out:
Audacity | Best Vocal Effects | Improve Your Vocals/Commentaries
Mixing Voice and Music Audio in Audacity