Much as I love to trade barbs with Scoble about his software philosophies vs mine, he does find good stuff now and then :) Case in point: iPodder, the cross-platform Podcast receiver.
Basically ipodder will grab RSS feeds of podcasts (with possible bittorrent enclosures) and throw them into your media player (currently itunes). There is apple and windows support, with linux support coming soon. Very nifty!