Thank heavens. A FLAC converter for OS X that doesn't leave you hunting around for libs, and even produces several lossless output formats, including Apple's own.

Found via How to Convert FLAC to Apple Lossless (MP4) on Mac OS X � Psychohistory:

FLAC is a lossless audio codec that is very popular on Linux and on Windows. However, it’s virtually non-existant on the Mac, which is a problem if you have a library of music that you have encoded in FLAC and you want to upload to your iTunes library.

There are various command-line solutions out there on Windows, but very few available for Mac OS X.

XLD is the answer.

Yes, this is essentially a follow-up on the Phish download from before. This XLD app is so much more reponsitive [sic] than the MacFLAC of yore.