I am getting ready to buy a PS2 system as my son's are wanting one for Christmas. I have several questions in regard to this system,(please excuse my ignorance on the gaming hardware). Do you have to buy additional accessories in order to play DVD's? Is there more than one model out there? The reason I ask is one EB seller kept quoting this is model number such and such. Do the old playstation games actually play on the system as advertised? This is one reason the boys want a PS2. Is there any additional accessories needed to purchase separately in order to get the system up and running for games? Any other advice on this you can give will be deeply appreciated! Thanks for any help!