I'm a (pianoless) mother of a 2+ year old, wondering what kind of piano to rent/buy for our home (a second-floor walk-up apartment). I remember being my daughter's age and waiting with anticipation to the time when I could reach the keys of our old upright acoustic. I feel it's important to expose her to the instrument and to my modest playing. I like what I hear about digital pianos 1) staying in tune and 2) being portable (we live in a rental and may some day buy a place). Can you recommend a brand/make of digital piano, and do you recommend renting one? What are the must-have accessories for me, and for her?