Rikki,
Considering your need..I think you made a very wise decision. I too am/was a more techi, than musician....Now I feel the need to change that...and learn more music, play more and tweak & fiddle less.
This is tough for me because in all walks of like I tend to be very technicle. Giving up the Korg PRO editing & functions would be difficult, but I may force myself to do it.

One thing you could do to help me....compare the Orchestral voices to the PA800...I use all thos a lot as well as Piano.
How do they compare? do they have glitches in them when you play note -note slowly right up/down the keybed?
Are they very realistic?
I know it will be a subjective thing, but I value your input.
Thanks,