I currently use a Pentax K10D and DA*16-50 lens. This is a great camera for HDR as it allows three or five shot AEB in 1/3rd to 2 EV steps. The fps is only 3 but so far I have found that plenty fast enough for people shots asking them to just hold still. The greatest feature I like about this camera/lens combo is it being fully weather sealed. I do a lot of image capture in harsh environments (snow, rain, dust, etc.) that can ruin other cameras.
This is the one thing that irks me about the new Canon 5D Mark II. All that money, all those MPs and it still only shoots 3 bracketed exposures at a time. Come on.
Mel