I am new to this LCD TV madness. I am looking to purchase a Sharp 32 inch LCD. Some models (6-7U) have a card slot for the cable card which is nice to avoid the monthly cable box cost but their contract ration is 800:1. The newer versions of the Sharp 32 inch series (40-50U models) have a contrast of 1200:1 but they have no card slot. SO can you add a card slot in the future? If not do you bite the bullet for the contrast ratio is it a really noticeable difference? Need some intelligent help Mr Confused