I agree with XL as well: take a look for yourself. I am sensitive to motion blur as well. If you are considering a LCD, 120 Hz is a must imho, especially in a larger TV, as there is more surface area thus the picture becomes more susceptable to blurring or judder. 120Hz will REDUCE motion blur but not eliminate it. 240Hz tends to render an artificial, soap opera, cartoonish look to the picture and to me, does not reduce the motion as much as 60Hz to 120Hz does.
Ultimately, if motion is a concern, buy a plasma: faster processing which means no judder or blur ( although some film does have anatural blur to it), better viewing angles, higher contrast and less expensive when comparing apples to apples.
