How do I merge bracketed files together into an HDR image on a Mac?

Question

I'm looking for software in order to put files from bracketing together under Lion and create HDR image.

Answer

The software I like best currently for HDR merging on the Mac is Nik HDR EFX Pro. It has a number of different ways you can vary the merge and so far has some of the more realistic tone adjustment I have seen.

http://www.niksoftware.com/hdrefexpro/usa/entry.php

They have an Aperture/Lightroom and Photoshop plugin.

Check more discussion of this question.