Juice is a podcast receiver that will download and manage your podcast subscriptions.
Features
Juice allows you to download and manage your various podcast subscriptions. It has a large built-in directory of podcasts (though some are no longer active). You can play a downloaded podcast directly in Windows Media Player.

By default, Juice will save your podcasts to JuicePortable\Data\Downloaded Podcasts. You can alter this directory in the options. It should be noted that while you are downloading and saving files to a USB flash drive, performance of other portable apps will slow.

Home Page - http://juicereceiver.sourceforge.net/team/index.php