if it is for gaming only get a gtx 780 Ti, it will give you the same performance for much cheaper. The only difference for gaming reasons is the Titan black has 6gb of vram while the gtx 780 ti has 3gb... You would be hard pressed to cap out the 3gb of vram on any resolution 1440p or lower. I can't even cap out mine at 5760x1200 most i ever see is 2.8gb used and that is very very rare.
The reference cooler on the titans are pretty good... if you case air flow is pretty poor you are better off going with the single fan blowers (hot air is blown out the back of the case)... if you have good case air flow the dual or triple fan coolers are better (hot air is blown into case)