I still haven't tried the PSR-S970 and the Korg Pa4x. It's hard to find them in stores here.

I've established a while ago that for the best in acoustic sounds, I'd need a Yamaha (Motif XF, Montage, Tyros 5). For orchestrals, there's the Kurzweil, Integra-7, or Motif libraries. For choirs, the Montage (from what I've heard so far), Tyros 5, maybe the PSR-S970, or the Integra-7. To that, I would add the DSF's Vocal Xpressions. Finally, for an arranger, the best, according to what I've heard on demos and read, there's the Tyros 5, Pa4x, PSR-S970, BK-9. Depending on how many keyboards I can afford or not, there's the BK-7m, or the newest Roland E-A7.

The discovery of what I'll eventually get is probably the funnest part!