Thanks a lot for that Ricky, when I will look a little closer at at the NG. I am reluctant to spend too much time with something I don't fly as the differences in system idiosyncrasies might start interfering with my three brain cells and start them arguing.
My pal (the one who pointed me in this direction) knows a lot about these things and is a PC man. I don't have one but use Parallels on the Mac which might find FSX graphics work a bit of a challenge looking at some of the specs on machines here. I will see how things develop with the PWDG 777 and if necessary, acquire a standalone PC.