HDR photography.

I am getting used to HDR photography, using bracketing function on my camera to take 3 pics, one under exposed, one 'normal' exposure and one over exposed and using photomatix to blend them together.
My question is, how would i do HDR when photographing a moving subject, as there would be heavy blurring due to the slight movement between each shot. Suggestions?
Dan

You can do single shot HDR, dodging and burning, use ND filters,etc the list goes on and on

Just have them sit still, people used to sit still for up to an hour to get a photo taken back in the day when slow film was all they had.

It depends on how fast the subject is moving and how quickly your camera can take the shots (i.e. frames per second). Most HDR software has some ability to correct for moving objects. The other thing you can do is process the HDR image for the background and then bring the photo into Photoshop and bring in the moving object from a single frame (you may still have to tonemap it to get the right look). This can be very labor intensive, but if done correctly can yield excellent results.

If you're not dealing with a huge dynamic range, then I'd use a single image (preferrably shot in raw format vs. jpg), and make two copies of that image, and reduce the exposure in one and increase the exposure in the other, thereby giving you your three images which you can pull into your HDR software. Now, if you just want that "HDR look", you don't even need multiple photos, because that look is actually a result of the tonemapping, which is done after the separate exposures are merged.

You can get the HDR effect from a single image with Photomatix. Just go to File -- Open -- choose your image and then under Process, click on Tonemapping. A preview of the different variations is then shown.