Mmmmmm, I would have to vote twice.
I have used Sapphire for ATI based cards for years (still love the X800GT with the extra pipes unlocked), and I currently use an eVGA 8800GTX that's spectacular. Drivers worked flawlessly on Win 7 RC, runs cool, my only complaint is the size, if my HDD cage were a bit taller (actually split into one 3-bay cage, a seperate bracket on top, and a fifth mounted to the ODD cage) the card would simply be too long. That's more of an nVidia design, though, not eVGA. First venture into nVidia for me in, oh, six years or more, very pleased with it.