I own a DVP S9000ES and I have liked it a lot. I am in the same boat, muti-channel audio (from an SACD stand point) is not of any interest to me. I use a SCD 777ES for SACD playback. The S9000ES is a superior player from a construction perspective. I am very impressed with the video especially when paired with an Sony XBR TV. But I should say that off the box chroma adjustments was not quite pleasing. I would recomend a setup DVD (like the AVIA DVD that comes with the player) to adjust to your room's ambient light levels. I felt that the NS999ES was not exceptionally better for video.
One word of caution both S9000ES and NS999ES have the infamous chroma bug that is document in detail everywhere in the web. Not trying to discourage the purchase of these players (they both are very good)
One word of caution both S9000ES and NS999ES have the infamous chroma bug that is document in detail everywhere in the web. Not trying to discourage the purchase of these players (they both are very good)