Using ACR, I didn't find this original image to exceed the DR of Photoshop, so see no advantage to using HDR with 3 bracketed images.
Instead, I just pushed some of the ACR sliders to more extreme settings.
In PS, I added further contrast to the sky and clouds with a curves adjustment layer


forum discussion: http://forums.dpreview.com/forums/read.asp?forum=1006&message=26815002&changemode=1
original image by Nancy (notawahoo)