Sorry, but I have to respectfully disagree with our good friend Tallyho... Yes, the Samsungs are good - superb for the money, in fact - but the Pioneers are in a different league. You are not just paying a premium for the name, but the best performance with every source around.
We totally appreciate not everyone will be able to afford them, so also recommend lots of other sets (including the Samsung), but if you can stretch to the Pioneer, it will be far more capable, especially with fast motion and contrast, than any of its counterparts.