Count my vote for the GTX670 FTW also. It's a reference GTX680 PCB so it should work with most water blocks out there. The stock cooler is reasonably quiet for a blower type - it's much quieter than any other I've had. And the PCB is all black, plus you can get a backplate for it which makes it look very tidy.
The ones I have don't have much for overclocking head room, but it does come with a decent overclock from the factory. I usually get 1228MHz on the core with the maximum Kepler boost.