Kawai. something from the Concert Performer series. Perfect feel, Immaculate sound. Can't beat it.

Speaking of Kawai, have you checked out this wacky one? http://www.kawaius.com/mp9000.htm
It houses true hammer action...the hammer is what triggers the note. Great for keyboards...I would think it would sucks as a master controller since it won't allow after touch. Still...if it is piano you are looking for...it may be an option.