From the description of your needs, I would seriously consider the Yamaha PSR-S900. Loads of great features, outstanding styles to work with, plus outstanding numbers of third-party styles, and excellent online help available 24/7.

Good Luck,

Gary

------------------
Travlin' Easy
_________________________
PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)