Joe,
Yes, according to my satellite provider you do need a different dish for their DSL service. Also a different one if you go to the Hi Def TV, plus a different receiver. Your wireless provider is far superior to any that I have seen try to set up in this area. And with all of the mountains and people scattered all through them it just isn't worth the money to put in a good wireless service. I like living away for the big populated areas but it does have some down sides to it also. Like getting anything for a car. You have to have almost everything ordered as the few parts stores around here just won't stock much.
Ron