You might rethink your keyboard system completely and go more with a computer-based system instead of tying all your resources into one keyboard. And you could simplify your setup and diversify it at the same time. A good lightweight portable General Midi keyboard would give you the basic sound set that you needed for any application, including taking home for practice, and there are many to choose from. And instead of a rack-mounted workstation, maybe a laptop computer would be a better choice. You could get your new keyboard/software/alptop/midi interface for $2500 and have something that is very portable and easier to use than any hardware sequencer, plus it would give you more versatility while costing far less. One example is Band In A Box by PG Music (http://www.pgmusic.com). This inexpensive program can easily create worship-style midi files and sheet music with lyrics at the same time. I think trying to get a do-it-all keyboard is a big limitation when you could seperate your components and get more band for your buck and lighten your load.