I learned enough already and no need for more replies cept one question below.. thanks a mil!!!

Thanks DonM and AJ, a tremendous help.
I have just one more question since you both are familiar with the Yamaha O/S.

If I were to get the Yamaha, am I able to attach say a great sounding GM2 module and bypass the internal sounds and still have full functionality of the arranger and sequencer functions?

My local store does not yet have the PSR2000 and everytime I get a chance to go, the PA80 is hogged by several onlookers. I did get to hear the sounds and it sounds, well alot like a Korg triton although the builtin speakers dont do it justice.
I know I have to sit with both for a couple of visits (get there early).

From checking around the web it seems like about a $800-$1000 penalty(?) to choose the Korg when all is said and done because of the options are many and extra while the yamaha are few with most of its functionality built-in.
Thanks again,
tgalf