Hey hey!I started taking piano lessons about 6 months ago. I'm reallllly having a good time, but I'm not so sure about my keyboard, which is a P-70. Compared to my teacher's acoustic piano, my keys feel really heavy maybe even a little big. It also doesn't sound very good.My question is, am I asking too much of my little P-70? Can I get myself a better model and expect it to sound/feel closer to an acoustic piano? How much should I be ready to spend? -- John