Right now, Dennis, I think we are in probably a 9-12 month wait for a new G-series 76. But you need something NOW...

OK, here's my recommendation. Buy a used G70. You won't lose much on a used one if you don't like it (I presume you are having as hard a time in Oz finding one to demo as we do in the US!). But to address some of your specific needs...

Yes, the SMF editing and re-voicing tools in the G70 are the absolute best and easiest of almost anything. This is where Roland have always shone. It is the work of just a couple of minutes to tweak an SMF from an entirely alien keyboard to sound good on the G70. Drum re-mapping, controller offsets, velocity offsets, the works. And all this without getting into the detailed sequencer editing at all! The sequencer itself is pretty comprehensive (but no competition for a computer one like Cubase).

The sound itself is very 'live', with drums that sparkle with dynamics, and don't sound dead and dry, there is a little 'space' around them that many others don't include. There are PLENTY of user and Roland demos to hear this for yourself (Roland-arranger.com stream most of them). If it's of any value to you, I use my G70 for all my full band gigs now without exception. It is still a VERY good, and very easy to operate live keyboard, and the B3 rocks, at least, better than other arrangers - get an XK-1 or Nord Electro if you are a Hammond purist. For me, in a band, the G70 B3 is good enough!

If you are into modern, cutting edge musics, sampling and all that, it ain't for you. I would bite the bullet and put up with the PA1 or 2X's OS to get that (and you'll gain synchronized mp3 dual playback to boot). But I have little to complain of soundwise in the G70 (other than niggles). I have always been able to come up with what I need...

The G70's combination of killer drums, killer piano, killer B3, killer SMF editing, ease of operation and some good styles (easy to edit or create new ones) make this an easy choice over the Kurzweil (I have a K2500, so I know a bit about this!). Although sonically it can keep up, there is no arranger features and operation is a lot less intuitive.

If you can't afford the NEXT Roland, you won't get the Audya, either (it probably will cost even more than the Roland).

No, simply put, you want a 76 NOW (or at least, within three months), I'd say either a used G70, or a new PA2Xpro. You may not like the Korg's OS, but trust me, you will find something you don't like in anything! Including the G70..! And given that they ALL are imperfect, basically that just boils it down to sonic and tactile differences. For me, that means a G70. For you... well, that is YOUR decision.