I have had Direct TV for 4 years. I want to go to an HDTV/Dolby Digital setup. What are good receiver/dish setups....can I get into a "deal" for purchasing one (I dont want to pay a bunch for a receiver and dish) ?I also wont mind a year or 2 deal to get one cheap. My original deal of free dish etc...is long expired. Also, does one of the other serivces have more HDTV content? Thanks.