The 'dfin' script is a BASH script that runs at the end of downloading/extracting in SABnzbdPLUS and is meant to rename TV shows to the same name they are posted on newzbin as, and then move the video file into the correct folder, and clean up any lingering superfluous files. I've only used it in linux, it will probably work just fine in OS X and probably in Windows using cygwin. Requires BASH and sed. You must change the 'complete' and 'dest' variables to match your setup.
You can download the most recent release here:
http://source.cyphen.net/dfin/trunk/dfin