I too used gpodder, but its quite slow and crashed a few times loosing my complete channel list.

Because of this I modified bashpoddder (http://lincgeek.org/bashpodder/) a bit, and I thought maybe you guys could also use it. Bashpodder downloads new podcasts sequential, instead of parallel, thus avoiding crashes and uses way less cpu power. (So you can sync the new podcasts in the background while doing other stuff.)

Please note: bashpodder is not a gui application!

Changes to bashpodder:
- Only download the last 2 episodes of a podcast, instead of downloading all episodes.
- Downloads the podcasts to the internal SD memory card. (configurable)

What do you need:
- Osso terminal
- Wget package

Download the files here: http://wsys.nl/bp_n800.zip

To install: (in the xterm)
cd MyDocs/.documents
unzip bp_n800.zip

To run:

cd podder
./bashpodder.shell

Modify the config file bp.conf to add and remove channels. (I already provided my favorite channels ;-)) Run the bashpodder.shell script from the terminal to retrieve the last 2 podcasts, rerun daily to fetch newly added podcasts.

Podcasts are downloaded to /media/mmc2/podcasts/<date>

Hope someone finds this useful, is working great for me :-)