Here's a couple of strong recommendations from a music store owner who carries all of these products.
The Yamaha P90 (or P120 if internal speakers are needed). However, the P90 has a better Grand Piano sound. both weigh about 37 lbs.

The Roland FP5 has a great piano and even has some arranger styles with drums, bass and accomp. with built in speakers and many more sounds then the Yamaha Pianos. The weight is about 32 lbs.

All of the above Pianos have 64 voice polyphony and are really dependable products which can be moved alot and give years of good service.

Prices will vary from $999.00 to about $1295.00.

George Kaye
Kaye's Music Scene
Reseda, California