Opinion on Korg SP200 Digital Piano

[Pyromidion]

I have a RadioShack MD-1160 (61 organ keys, 99 sounds, 99 percussions beats, 99 sounds), and am looking for an upgrade to an 88 key, weighted, and that actually sounds like a piano. I went to the store and came across the Korg SP200, i can buy online for $800 (or at the store for $920). Anyone know about this keyboard, and have an opinion on it?

-John