I second checking out a Forte ( which I own) or PC4. And if you should decide to pull the trigger on the PC4 I highly recommend buying from Dave Weiser
What stores have it in stock? KB3 does not have it's own polyphony on the Forte SE and I believe the amount of EFX that can be used in the Forte SE is less than the Forte.
I thought that I had read somewhere that the German and Japanese Grand Pianos on the Forte are 2 GB each but I may be mistaken. Besides the new Pianos,Rhodes,Wurli and Clav sounds there are also new Harpsichord sounds.