Check out the "No Agenda Show", might take you a little while to get into it... but they will make you think. I don't agree with everything they say, but it is entertaining.
From a Libertarian / Austrian Econ side I listen to:
The Tom Woods Show
ContraKrugman
The Peter Schiff Show Podcast
Also check out: The James Altucher Show - sometimes it is hard to listen to, but great guests and differnent point of view.
Tim Ferris is also great!
Hope this helps.
Think I'm going to need to move further from work lol
Just quit work, then you will have 40 hrs + a week for podcasts! :-)