Is it a piano-style action you want? (In that case, you'll need to buy something with 88-keys).
More than happy with my Nord Stage 2 with 76 keys (weighted)...
Kurzweil tempts me for other sounds definitely, but really not sure I want to go back to that kind of interface ... I love the hands on straightforward approach of my board. But I do covet the Kurzweil's orchestral sounds for one, but like others, the lack of a decent local outlet is frustrating in terms of casual investigation.