DirecTV- Moving, upgrading to HD and questions about "Dish" dishes. We have DirecTV and are moving to a new house. With the move I would also like to step up to HD as I will be purchasing an HD ready TV as well when we get settled in. How can I get the best deal from Direct TV? I don't want to pay much if anything for an oval dish and I could do the install myself if it would help get the best deal. That said, I wouldn't mind an installed deal either as I am sure I will have a long honey do list already with a new house Also the new house HAS 2 existing Dish Network dishes installed. Could I use them instead of an oval DirecTV dish? They are a "Dish 300" with one IRD (I think thats what those things are called) and a "Dish 500" with 2 IRDs. If they wouldn't work for HD, could I use one of them to get up and running in SD until I found a good deal on a oval Dish and a HD receiver? I have pics of the existing Dish setup if that will help.