I recently bought a touch senstive Yamaha digital (the 55whatever) and it is great as a first time piano -- as everyone says, you can move it around, pack it up (if you have a small space), take it on trips (!!!). It has nice sound, and a good feel. The only problem is, if you are into classical piano, it doesn't have the three pedals, which you would have to relearn. Aesthetically, compared to the look of an acoustic, they are horrible. But I never thought I would buy one -- it was just desperation -- and I think it is great.
yours, Peter T.