gPodder – Possibly the best podcatcher for Linux
Since getting an iPod a few years ago I go introduced to audio podcasts and in the last 12 months video podcasts. Under Windows XP I used iTunes to manage my iPod, including podcasts but as iTunes does not exist for Linux I had to search for an alternative.
Many of the Linux music players support podcasts and iPod integration but my experience has been somewhat disappointing, however I stumbled across gPodder, which not only handles audio and video podcasts extremely well it also synchronizes them directly to my iPod! It is still actively being developed (even I have recently contributed with some bug fixes and features!) and I am sure if a stable windows version could be made it would even become popular on that platform too.
gPodder should be available in most Linux distributions, check out the gPodder WiKi for information on how to obtain it for the popular distros and how to build from source. You will also find information on how to join the mailing list where you will meet a friendly bunch of people to share ideas and get help if you should need it.