Just FYI for anyone interested, Daz3d are currently offering "DAZ Studio 4.6 PRO" for FREE -- normal cost $249.95 -- I'm not sure how long the promotion will be running for.
You need to provide some simple personal information when registering, and they'll send you marketing emails (which you can simply un-subscribe from), but the offer is genuine and possibly very valuable for anyone interested in the software.
http://www.daz3d.com/daz-studio-4-pro/
NOTE: You might also be wise to check the licencing conditions of the software -- see the notes from some members in this topic.