Doppler
I'm checking out RC1 of Doppler, a .NET app for downloading podcasts. I'm interested in seeing if its scheduling works. (I haven't been able to get iPodder's to.)
It looks and acts cool; I like being able to drag and drop URLs from Firefox to Doppler. I also like its initial feed parameters; it lets you tell it how many of the most recent enclosures to download, and if you want to specify a maximum enclosure size for the feed.