Finally have my Media Center tweaked properly for Movies and Music. I want to now add a tuner card. I know I want to be able to record and watch at the same time but am unsure if I need a dual tuner card or can I use two separate single cards. Also I am soon to be getting HD so will I need at least one of the tuner s to be HD? Finally suggestions on what brand tuner cards are the best would be appreciated. Thanks in advance, Ron