Im planning on putting a satelite system and I decided to go with the Sonicview 8000 HD as I want HD support for my HDTV, this is what I was recommended on this site

. Now I would like to know what kind of dishes I need? what lnbs? are there any cables better for hdtv or just normal cable wires....
I was thinking to get one oval dish that supoports 4 lnbs to get 82,91,110,119. And I alos wnt to get 121 is there a speacial dish for that, because I have 2 old dishes on my house one says dishnetwork a small one and the other a larger one probably 30 inches. I also want to get russian channels, their satelites are Express AM, Yamal, etc do I need special dishes for those???
Is there any diferences in Lnbs, exept for the output?
I just wont good quality at a resonable price
Thanks everyone for the input