I would also now recommend the New Roland VA-3. It sells for $1295.00 but it has over 3500 sounds, 116 drum sets, and when you make your own styles, you can put all the styles you create on one disk and use the disk link feature which lets you call up any one of all of them instantly. It also has a great 16 track sequencer besides a quick record sequencer and unlike the Yamaha, you can edit everything you can on a computer sequence program. It also adds voice editing and you can program 128 user programs, 40 super sounds and four one touch setting for each style. This is another good choice besides the Yamaha PSR 740 or Casio.
George Kaye