Yeah it is a great book no doubt! Lets hope the film does it justice! The only qualms I have is casting Tom Hanks as Robert Langdon! He just doesn't fit for me! hopefully he'll prove me wrong.
Yeah you don't want to be using a PC mic to record good quality vocals! If a condenser is a bit out of your price range then there are a few dynamic mics on the market that will do a pretty good job!
Yeah thats a pretty good message your putting out there, but I agree if you want to make it a song it needs to be a bit longer than that. Have you recorded any of it so we can hear?