I'm looking for a 9-speed rear derailleur in decent condition for a rainy day bike. I'm looking to spend around $15-20, so probably 105 range, maybe Ultegra. Please let me know what you've got.

Also, anyone have an old 27.2 seatpost (preferably in black). It doesn't have to be light, just looking for cheap and functioning, ideally around $10.

Thanks

Ben