Yep, I had one.
Great keyboard, UD is right, since it was geared for a different market(Pro), they dropped the psr.
Hence 9000Pro.
http://www.yamaha.com/yamahavgn/CDA/ContentDetail/ModelSeriesDetail/0,,CNTID%253D2205%2526CTID%253D,00.html#

One of the reasons it was poorly executed was that it belonged to the Synth department rather than the arranger KB department(as far as I remember). They did not know much about arrangers and did not anticipate the end users needs very well.

Eric