With my new GeForce 8800 GT installed in my Mac, all my 2D window-drawing artifacts are gone, and I am once again able to play 3D Windows games (via BootCamp) without having the machine crash from overheating after 10 minutes.
So Walter, Iain and John should watch out for a new Team Fortress 2 user by the name of
Clith de T’nir!