Those with digital pianos and a MIDI lead will soon have the ability to produce a tone that many acoustic owners would envy! Click on "MP3 sound examples..." at the top to open a window which lets you hear some examples. Pretty amazing to think that those were not produced with 100% acoustically.
It definitely doesn't look cheap, and needs a pretty high end PC to run it, but it's certainly a lot cheaper than the legendary grand pianos featured in it!
*is desperate to get hands on that software*
Edit: Sampler, not synth (title)