I am A fellow Mac user, and my flight setup is X-plane 8.11 with 6 more heavy metal bought or downloaded for free at www.x-plane.org,
currently I have the A380, A340, Tristar 250, 747 400, 373-300 (air berlin a very good one!) MD
-90 and 777-200, tons of other but these are my main planes.
If you buy a Dual 1.8 ghz G5
be sure to get the Nvidia 6800Gt for Macintosh it lets you put everything Up in resolution and pbjects (heck you can see cars and trucks in the streets as you land...!!!).
I also have a Pc windows machine a Athlon 939 4000+ une gig ram, Nvidia Gt 6800 and I use my flat 22 from apple at 1600 X 1200 and Microsoft Fligthj simulator is no match for MAC
/X-plane, in use, features and looks (well the spining fans on FS
are cool but thats the only diference...
For you guys playing FS
you can download X-plane for free as a trial and check yourself...!!!
The best seat in a Plane is the Jumpseat.