[steveivy]

Also, I'm told that the "modern" perl way to do this is AnyEvent:

http://search.cpan.org/~mgrimes/AnyEvent-Filesys-Notify-0.05...

Still backed by OS X's FSEvents, so you're not reinventing the wheel.

[aeontech]

Ah, nice. I just mentioned the first perl fsevents google result, AnyEvent definitely looks nicer :)