Casio CZ/ VZ/ FZ - Pro Series

I own Casio stuff because my first synth was a cz-5000, which 
impressed the heck out of me, and I didn't have much money to build 
my music studio.  I ended up with 

2 sk-1
1 sk-5
1 midi piano sound module
1 midi router
1 cz-5000 keyboard synth
1 fz-1 keyboard sampler/synth

I have the original operating books or copies for everything exept 
the midi router, and I have software for the fz-1. I have been trying 
to track down a trade paperback on synth programming based on Casio's 
phase modulation system for a few years, without luck.  They books 
that came with the equipment are pretty good, however.

 I have a memory module for the cz-5000.  The two big keyboards are a 
permanent part of my studio configuration.  I use the cz-5000 for 
sound output only, and i use the fz-1 as my keyboard, as well as a 
sampler occaisionally.  When I got a little more money and a little 
more understanding, I also bought Roland equipment, and thought about 
performing as Roland Casio for a while, but I have never made it out 
of my basement as a musician yet.