Last night after my staff meeting, I went over to a friends' to check out their new organs. They have both a Roland AT-90S and an Allen MDS-26 with a MIDI Division. It doesn't get much better than that.
Not quite the MDS-26, this is a pic of the Allen 27-stop Renaissance organ. Still a nice instrument.
Though I am a self-taught organist (piano was my main instrument, harpsichord my minor in college), even I can appreciate the phenomenal sampling on the Allen. Unbelievable.