I'm using PTGui PRo on the tail end. I've been looking for a package that did both panoramas and HDRs in one pass, and PTGui came highly recommended for this task. It's a little on the pricey side for my taste (around $200 USD), but well worth it. I've been going through some of my previous attempts, where I had to HDR each frame prior to stitching (very painful), and PTGui does a very good job -- much better than I did in some cases.How did you do the HDR? This is something I've been thinking about playing around with.