Actually the Yamaha YPG635 does have the hammer action keyboard. It's the YPG535 that does not. The YPG also has very good styles and sounds. The price is $899 and it is not nearly as portable as the PX330 and it has no midi connections. It also has 64 note polyphony and the Privia has 128. It also doesn't have a 16 track sequencer but rather a 6 track sequencer.

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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com