I got my s700 last week I also owned a psr 2000.

I love the 700 the revoice feature revoices your smf to use mega voices right out of the box, I didn't have to do anything. I thought I would need to use the mega enhancer software but I didn't need to.

I bought it for many of the reasons you mention, I already have a vocal setup and a recording setup so I didn't want to pay the extra money for the inferior harmonizer, although I thought it was great fun on the psr 2000.

The SA voices sound nice but I probably don't have the skill level or the inclination to learn to use them.
I use the board mainly for backing tracks. The sweet, cool live voices and the drawbars are nice. And the styles are better than the older board.
The big improvements for me are the usb stick, no more floppies! And of course the sound



[This message has been edited by mikeathome1 (edited 07-05-2008).]