Hello!
Yes indeed, under 32Bit it was struggling, which i couldnt really fathom, until a eureka type moment when reading one of flying truckers posts recently.....
Now however its like my fs2004 set up was on my old mac, full on - slight stutter under real heavy scenery such as airports with lots of traffic, but still flyable. Default scenery - its very smooth, and ive yet to tweak anything really other than set windows up properly, thats all ive done.
If i knock the sliders back just a touch, i bet i could have a real smooth and fast setup but i do like the eye candy side of things also 8-)
I think theres more to come, theres a few things ive to do but getting it installed and running nicely was my first goal.
The Orbx scenery i cant decide wether i like it or not, Orbx i note seem very clever in the shots they post online and in the PDF 'manual', the gushing praise they get on there own site - as with all similar sites - its often difficult to be objective with it! - sometimes i think it looks rather....lame in the actual sim. The bit i have appears ok from most angles but theres a few parts as you climb out and so on that just dont seem to 'fit' with the rest

From altitude yes its very nice.
Good bits mixed with seemingly default things that just dont look quite right... Maybe im missing somthing! In some areas its quite brilliant however...
But as a test on my system and its fly-ability im impressed very much with how it looks and flys.