MacFUSE won't really do the trick, I'm a strict believer in kernel-mode FS.<p>But, yes, what I truly want is to ZFS my OS X boot partition. Actually I don't care if it's ZFS - anything BUT HFS please!<p>Why? Corruption. HFS+ with less than 50% free space is almost guaranteed to corrupt on unsafe shutdown. And it doesn't fsck at boot, leaving you to realize it's been corrupted only when files and folders refuse to copy or spotlight acts up.