Thanks everyone for the great replies. Very informative. It's interesting to see the different views on these products.

The release of the new Tyros of course adds a little cloudiness to the mix and the fact that I enjoy my Technics KN so much also doesn't make the decision easy. And then there's the option of keeping the KN7K and going down the component route with a seperate harmoniser, Software sequencer (Logic maybe) and sound module.

I guess I'll make up my mind at some point.