Ok, I tested out the S500, S700 and S900 today. The S500 sounds exactly like my DGX-305, no difference, at least to my ears. The S700 sounded like a Tyros and the S900 like a Tyros2. And the color screen on the s900 was a lot like the one on the Tyros. But the registrations seemd to work the same on all three boards. The + and - buttons for the banks looked like a good thing, does the psr-3000 have a similar feature quick way of selecting banks? And I noticed that I could only give names to the banks the selves, I couldn't find any way of seeing the names of the individual registrations. I would like a way I could see the registrations as "1: Cottonfields" "2: Let it Be" "3: Proud Mary" and so on, that way I could press 3 if my brother shouted out Proud Mary G major, in the middle of Let it be.. Is that possible on any of these boards? (S500, S700, S900 and PSR-3000)

Doc-Z