The first Mac OS X package is the Graphical Installer. [0]<p>It looks like it takes you to a link that lets you download a .dmg file. I assume those are basically one-click installers for Mac OS X programs?<p>[0] <a href="http:&#x2F;&#x2F;www.postgresql.org&#x2F;download&#x2F;macosx&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.postgresql.org&#x2F;download&#x2F;macosx&#x2F;</a>