Alright, so I've tried one:
Used "tone compression" in Photomatix, mainly because the description of the process fits my understanding of HDR better.
These are the source files:
Probably not the best source images, but I don't have too many bracketed sets. Maybe I should try the sample files? The HDR is brighter than even the "bright" version I have, I presume because it's centering the exposure curve and all three of my photos are a bit dark (because it was appropriate, I think). Colour seems to have changed a bit, too. I think I was expecting it to be more of a composite than it turned out to be... it looks like a completely new image.
Now that I see your source files, I see what you're saying about retaining the mood for Big Rock.