Gary teaches us how to schedule podcast updating with AppleScript in this tutorial. First, log onto the AppleScript Editor and run it. Next, type in "tell application "iTunes"". Then "activate", then "updateALLpodcasts", then "end tell". Now, click the compile button and then click run. Now, you will see iTunes pop up and it will download all the podcasts, then they will update on your computer. Now, save this script to your desktop or wherever you want it, and keep it in the format Script. Once finished, you will have your podcasts updated daily. You can also set it up as an alarm if you prefer, enjoy!
Oh... and if you're working from home these days, be sure to check out Gadget Hacks' Working-From-Home Essentials.