Coaster tim i dont get the reason your churcg wants to spend anymore money on a new keyboard when they already have more than they need in the Es. What would it cost to spend 1 hour with anyone that might be a member of your praise team to learn the basic functions of the keyboard ? I bet if you hired a demonstrator from a keyboard shop local to you foe even say 4 hours to give an on site tutorial it would cost you less than $300 and once that knowledge has been passed on you can do the same for any new potential band members as and when they join.

Unless there is another reason that you havent stated this seems like a real waste of money. You already have a great keyboard. You just need to look at the problem froma differnt angle. Surely the church doesnt suffer from gear lust too :-) ( That was a light hearted comment Coaster. I am a church worship leader too.)