This week i was fortunate enough to be able to buy a new digital piano for gigs. I chose the Yamaha P95 having regularly performed with a friend of mine who has the P85. This is a great piano, ok not the most expensive in the world, but for the price has a great action and very good quality piano sound. Furthermore it's light! Very useful if you travel alot. Only 12kg compared to more than 30 of my S90 with the flight case.
For help choosing a new digital piano i found these resources very good:
I should add the S90 is a wonderful piano too, and for a keyboard synth has a beautiful piano action and sound to match the best.