I wonder how the k20d would handle the situation, because it can do that per pixel hdr shot in one frame... I also just found all my old pentax lenses, makes it very tempting for me
I found this example:
The right is the single frame hdr... pretty sweet!
agentorange: cs3 photoshop, will take forever to try and align the images and give you a blurry mess at the end of it if there was movement.