The short answer is no. This question has been raised many times before, and it makes hardy any difference having a progressive scan DVD on the pd3000. Save your money.
I have this Plasma and also thinking of buying a progressvie scan DVD player, Why is it not worth the outlay, and what is ALIS?
I was going to buy a new playre today ,Your help could save me £250 (Just keep my present DVD player Pionner 444S).