Can someone comment on the important differences between the various 900 series models? Correct me if I'm wrong, but are the primary differences between the 950 and the 970 mostly in video connectivity? They both seem to offer the same surround modes (actually the 970 and 990 dropped one). Component bandwidth is more than double in the 990 and the 990 offers both phono input and 7.1 discrete (vs 5.1 discrete in the 970 and 950). It seems that if I switch video outside the processor and only need 5.1 vs 7.1 (I don't really have a way to truly setup a 7.1 system in my family room and 5.1 sounds good enough) and use an external phono preamp the 970 or even 950 (used ones show up on ebay now and then) might still be good enough.