Working with Skystar 2 here. Did some "playing" & now it streams perfectly to my HS10 via DVI.
CPU load = 80/85%, mem useage = 65/70mb.
I wouldn't recommend a quad LNB. They're fine for Sky+ etc, but signal strength is seriously reduced over a single LNB & signal strength is important when receiving 30mb/s.
2 separate issues here.
1. What "satellite" equipment do I need (ie. dish, LNB, Sat DVB card & software) &
2. What spec PC do I need for playback of 1080 (hi-def) material?
I'd suggest d/loading some WM9 files & see how your PC copes with them. There are also other hi-def clips available for download (.ts). No point in even looking at Sat cards/dishes etc. if the PC won't handle it.

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