Slumber was part of Talefish initially, until I realized that having a good sleep timer as a standalone tool for all media players multiplies it's "usefulness per code maintainance" ratio (also: most sleep timers in players are not nice since it always has to be a secondary feature). Because the timer portion was much more mature/useable, I made slumber. It should work pretty seamlessly with Talefish.

edit:
I don't think the gpodder integration be easy. But the sorting of directories might be: Have you tried sorting the open dialog by using it's pulley menu?

cheers all, thanks for your appreciation