Good NEWS for all Mac Users:

"Starting with version 6.6, SilverFast now supports Leopard for all 35mm Nikon scanner models (and all current IntelMacs).
Nikon Filmscanner are now addressed directly without any detour through the MAID-module.
With help of the patented SilverFast ME®, Kodachrome slides can be scanned with full dynamic range up to 3,8D for the first time
(without SilverFast ME® the Nikon LS5000ED generally only reaches 3,3D)."

but : "Presently only 35mm film scanner will be supported – a new version for LS-8000 and LS-9000 film scanners will follow soon."

I asked their support, when a compatible version for the 9000 will be available.
They replied, they are working on it and it would be distributed in maybe three or four weeks.