Don,
It's very difficult to compare these two keyboards. To me, they are so very different in their design philosphy. Yamaha want's to build a keyboard that is really strong on user interface potential, stong on voice selection, and have a stong "comfort level" with their past keyboard models. Not so strong would be the Yamaha Sequencer abilities, however very adequite. On the other hand you have the SK760 which is the strongest sequencer to date, very good sound quality, better styles than the Yamaha,in my opinion, but weaker in the effect catagory. The 760 has a beautiful mixing confinguration but has a very slow way of calling up and playing standard midi files and songs. You must first load them into the song memory or into a song buffer which takes quite a long time compared to the Yamaha's direct disk song playback feature. Because the Generalmusic has 76 piano type keys, you might like this one better if you are mostly playing Piano and prefer this action, but there are no speakers in the 760 and you must go external. I personally think both keyboards are different enough that I would want both of them. In fact my choice would be to have the X1, the 9000, and the SK760. But then, I own a music store and I'm around all three everyday, and love to play on each of them. As we have all stated over and over again there is no clear "best". They all have there strengths and weaknesess.
George Kaye