I'm almost finished with my first build but I still need to choose a Graphics card. I know I want an NVIDIA but with so many options I'm stuck! I won't be doing any gaming but I will be doing HD video editing and rendering as well as working with Blu-Rays (Playing & Burning). The current specs of my build are below. Any opinions would be greatly appreciated, this is my first build!! 3D is also a necessity! And I will be running dual monitors.
Intel Core i7 2600k
Asus Sabertooth P67
HAF X Case
750W Corsair PSU
8GB Corsair Vengeance DDR3 1866