Luis,
If you cannot go and play both, then I would at least listen to the online demos. I do quite a bit with the latin percussion sounds and my choice would be the 9000 between the two.

The other thing to consider is the availability of more sounds and styles and no doubt there are more on line resources for the Yamaha PSR boards then for any other.
Terry

[This message has been edited by trtjazz (edited 10-20-2002).]