Norman,
I am a PC/Vegas Pro user and have been for many years, so I cannot comment on Mac/FCP stability.
I can, however, comment on PC and Vegas. I am on WinXP/SP2 and Vegas 6,7,8 and 9 and have
never experienced any system stability issues.
NEVER!
On both my laptop and desktop, DV Rack and Ultra both, have been rock solid.
Any problems I have seen, have been obvious and none related to the platform but to failing hardware.
I built my own system many years ago and though it is time for a serious hardware upgrade, I am not planning to go the 64bit route just yet. Only because that is where I have seen most of the problems being reported in the various fora I frequent.
Sorry I can't be of more help.
Cheers for now,
Tom Pauncz
(30WEST MEDiA GROUP)