Did you use a tripod for the HDR shots or can you over lap them like panoramas do? I always thought you would need a tripod for a perfect fitting frame.
I have never tried to do an HDR because I don't know how! I do have CS3 but I rarely use it, I do all my work in Lightroom.
So much to learn about photography for sure and by the time you get it all figured out the rules change.
don't need a tripod with the good software, but it's better. Much bigger issue is moving water, but Photomatix can line that stuff up pretty nicely
download the photomatix trial - it's free and full featured, just puts that logo on the image you see above. You also can use it to "tonemap" RAW image files - much better than just using curves in Photoshop. I clearly haven't been able to figure out how to manually get to the setting I want, or I just don't like this look you are bound to get by making everything fit within the more medium brihgtness values.
so much to learn, you're right. I just bumped into something totally new to me that is based on HDR concepts, but for a totally different purpose - noise reduction in shadow areas:
http://www.guillermoluijk.com/article/nonoise/index_en.htm