I second the BK-9...only issue I have with it, is that the much vaunted Chord Sequencer works well enough, but has a serious flaw (at least for some people's needs, including mine) in that it will not transpose a recorded chord sequence if you decide to change key during a tune.

Otherwise, the organ section is by far the most realistic Hammond emulation you'll find among arrangers (including Ketron), with reasonably well simulated (and situated) drawbars/sliders and a more than acceptable Leslie sim ...add those high quality Roland sounds and styles, a 76 note decent feeling keyboard (quite passable for piano) and you've got a nice lightweight and quite powerful instrument.

Ian