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Judging by the demo only, the PSR-S770 sounds fantastic. Much better than the previous PSR. The drums, in particular, sound very realistic and live. I think the overall sound is an improvement. I thought I might have to either get a Korg PA900, or a Roland BK-9 to get better drums and a more live feel, but not any more. Of course, like you, Donny, I will have to try it first. If the PSR-S770 sounds that good, then the PSR-S970 will probably sound even better. I'm leaning towards the 970 for now, because of the extra sounds, styles extra goodies.