[Baron Munchausen]

nVidia based cards seem to be the best choice for heavy 3D usage. They are always close to ATI cards in performance, but the drivers are much more reliable. If you are not a heavy 3D user, I think Matrox still wins all the awards for best 2D image quality and their implementations of multi-monitor ability are usually the best as well. Their drivers are pretty good in my experience. Matrox is a very good brand for business and other practical applications where 'productivity' is the determining factor.