Finally my long awaited software for mac, Logos Bible Software.
Yes! Yes! Yes! Is gonna make available for OS X this year late fall. I gonna have access to ton of bible references. Check it out at http://www.logos.com/mac
But then we have the freeware version, MacSword from The Sword Project, an open source under the GNU General Public License. You can get more information at http://www.crosswire.org/sword/