I would suggest looking at all the features on the Roland VA-3. I also played the Casio and I don't think their styles are as good as the Roland, and everything can be programmed on the VA-3 including styles and 16track songs. I don't know how the Casio handles the playback of midi files and loading styles from disk, but the VA-3 has a great interface for loading while playing styles and songs. I also like the sounds, especially the brass, guitars and strings much better on the roland. The piano sounds are probably equal between the Casio and the Roland. I can also say that Roland's technical support is the best in the US of any of the company's I deal with. Casio has always been way down on my list unless they've done something to change my mind recently. Also, for around $1000 .00, the Yamaha PSR 740 is another good choice as well. Not as good a sequencer, but the sounds, styles and vocal processor is good.
George Kaye