I had Bobby Owsinski on my Musicians Cooler podcast many moons ago to talk about being a producer. He has put out many book for the music business. He also has a book for creating a studio. Obviously this ties into podcasting. For the person who is looking to get the best sound possible, this may be a book for you. Not only does it cover some great topics, it comes with a DVD that demonstrates many of the topics. It's available at Amazon.com for $26.