Did you use CS2 or Photomatix? Sometimes one will yield better results than the other. I have found that Photomatix is better with the small details, and can give a dreamlike quality to the images. I think what is throwing me off about your image is the sky.. its just too neutral and lacking detail. If you are using CS2, i recommend really messing with the curves during the conversin to 8bit; if you get it right, you can remove the halos from around items in the photo. Another good tool to use is the Shadow & Highlight in CS2, mostly for the Midtone Contrast slider (HDR images can become really flat sometimes, and this will help bring out more definition). Multiple images also work better than working with one RAW file (but i see how that wont work for the shot above)