I have just read somewhere that the pv500 uses the same glass as the pv500. I have also read a review on a U.S site which reviews the equivalant models ands states they perform exactly the same. If I am not planning on a seperate scaler is there a point in spending more money on the phd8 series over the pv500? Please help, as i am about to place an order today. Also, how good is av sales [online store] after sales service etc.?