Buy the PSR-S900, have fun with the kids, and don't look back. It will provide both you and them with endless hours of enjoyment, the operating system is a piece of cake, the sounds are incredible, and it's extremely versatile.

Good Luck,

Gary
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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.)