Daz has been giving it away for quite a while. If you have little or no interest in modeling your own characters, it could help. Search the forums, and you will find links to scripts that can make the import process easier.
It will by no means be easy to get a good looking character using Daz, you will have a lot of cleanup to do to such as getting the material for the face to accept shadows based on alpha (TraShad).
Never…Select all vertices and remove doubles
You will most likely have to at least set smooth, auto smooth and maybe even subsurf.
To the best of my knowledge, you cannot export the bones, so if you want to animate the character in Blender you will have to do your own rigging. If you want the character to look as if he/she is inneracting with obj you modeled in Blender, you will have to export the objects (reverse your scaling process) pose te characters arround the object(s), then export the character and inport into your scene.
I use Poser 5 & 6, and occasionly Daz, but all daz content can be installed and for use in Poser. Recently, Poser 5 was offeed as a freebie from Content Paradise, but I think the offer has expired.
Best of Luck!