A simple automator workflow to import FLAC files to iTunes.
Note: The flac2mp3 script was removed from the "flac" homebrew package, so these instructions are incomplete. I'll get an update out soon, but in the meantime, a workaround is to install the flac2mp3 script to a folder on your PATH.
brew install flac
Note: This will delete the FLAC files that you move into that folder. Use caution.