Hi Merlin,
yes "editing" means that you can change a sound at will (filters, envelopes, etc).
The Motif offers, over the 9000, a much more sophisticated sampling option, a larger number of waveforms, maybe better effects (but I am not sure about this one) and things like a SCSI connection (to hook up external hard disks or CD-ROM units).
If you are mainly into playing live and don't want to worry about editing, buy an arranger; otherwise, if you are more a studio guy and like to tweak sounds or effects, then buy a synth or a sampler. For extensive users' reviews of both these units you can visit the site http://www.harmony-central.com/Synth/
here you will find all the synths listed in alphabetical order.
Regards,
Andrea



[This message has been edited by Dreamer (edited 08-29-2001).]