Please help me decide which keyboard I need. I am a musician/composer who has been disabled by tremors and muscle weakness. I want to buy a keyboard or digital piano that will have a light enough touch to allow me to begin playing again. I like the Yamaha Clavinova CVP, but I am concerned that the touch is too hard and will tire me out too quickly. But I miss the feel of a piano when playing a synthesizer. I could not find any retailers who would rent me a Clavinova to try out. Do any of you have any suggestions?