Our family is getting a digital keyboard for Christmas. I think what finally sold us on the keyboard over a real piano was that you can use headphones to practice without disturbing the rest of the house.

The one we chose does come with 88 weighted keys, pedals, wood console, etc. (http://sellout.woot.com/blog/viewentry.aspx?id=10552) The whole thing weighs over 100 lbs., and even though I'm not sure how much of that is console vs. keyboard, I'm not counting on it being very portable.