I am fairly computer literate and want a complete FTA package. I read Dreambox 7020 is the best but I don't want to spend that much. How does the prior version compare? Should I just go with Cool sat 4000pro? I want free channels and hacks for Dtv. I don't understand this N2 stuff but are they compatible? Where are the best deals? Should I get a motor? What all do I need to get the whole set up?