WavTap
Capture whatever your mac is playing to a .wav file on your Desktop—as simply as a screenshot
(this is alpha software. it's sorta stable, with caveats.)
Installation
run the installer.
Nerd Corner
make uninstall removes everything
it's a fork — but lives independently of — Soundflower. thanks to ma++ ingalls, Cycling '74, tap, and everyone else who's contributed to it.