I own the Casio PX-400R digital piano. Fantastic key-feel. The piano is not cutting it for me. It's good enough for a while, but I'm dreaming of getting a real, lush, grand piano sound.

Since this digital piano is in our living room, my wife wouldn't allow me to have a computer in there, but I could sneak a synth module and either play it through headphones, or maybe she would allow me to attach some small speakers to the PX-400R's stand.

What synth module gets the best piano sound, in your opinions? Someone recommended me the Motif ES rack, but at $1000, that's a lot when all I want is the piano sound.

This purchase might have to wait for several months, but I want to know what to look for in case an early opportunity knocks.

Thank you,

Beakybird