Well, it's all boxed up & ready to be picked up on Monday.
I fired up my old XP32 box, just to have a look, and there is no way on this earth I could ever revert to 32 bit or XP!
There were a few old plugs i wanted the dlls for, so I copied those across to my External.
So I now have a quad core Q6700 with 4Gb of RAM doing nothing.
Think I'll wipe it, re-install Windows and see if anyone round here wants a pretty good machine by way of introduction into home recording.