I just installed the newest version of Photomatix and I must say, I really like it. I have only created 1 HDR image with it so far but I really like the new interface with the multiple preset thumbnails. It also seems a lot faster than version 3. Here is a sample of an image I created using 7 exposures. I choose the preset I liked the most and then tweaked it from there.
If you have a licensed copy of Photomatix 3.0 the upgrade is free!