The Yamaha NP 12 is a very affordable keyboard for beginners. Though the keys are not weighted, they are touch sensitive, so when you press lightly, it plays soft, and when you press hard, it plays loud. It also has a very nice piano sound. It is lightweight and easily moved, and can be put on a desk or table to play.
The Yamaha P71 is an excellent value. It is full sized, with 88 weighted keys, and delivers a beautiful, full sound. (I have one in the studio you can test.) My only complaints are that the headphone jack is in the back and hard to reach, also the music stand tilts beyond the back of the keyboard, so you can't push it right up against the wall, somewhat negating the nice slim profile. Bench and stand are not included; recommendations for those are below.
Though it says it is for the model L85, this keyboard stand fits the Yamaha P-71 above and is very easy to assemble.
This is a very affordable piano bench, and much more stable than the "X" variety that is usually packaged with digital pianos.
It comes complete with a storage space under the seat that holds music!
This is a link to the full sized Arias keyboards we have in the studio, bundled with the stand, bench and free headphones! I have had some for nine years now and they have held up beautifully to all the wear and tear of daily use.