This was my first try at HDR with Photoshop. I learned a few things. First, avoiding those wierd halos is a little ticky. Second, contrast (especially color contrast) goes out the window and is very difficult to get back. Third, my results were better the more images I included in the merge. Fourth, my tripod sucks. Fifth, all of this is probably useless analysis without a proper set of prints to be examined, because monitors don't show the full range. Sixth, be sure you have something else to do while PS is merging the images, otherwise you will be incredibly bored.