Hello! I need help choosing all the parts for my PC build. I want the best and most powerful build out there, and I don't care what the price is, just make it the most powerful. Thanks!
Here. That's about the best money can buy.
However, if at super high resolutions, like surround 1440x2560 monitors, the r9 290x superclocked(when it comes out) might do better as it has 4 gb of vram. But at a single monitor up to about 4 k, you should be fine.
Also, it is debatable whether the i7 has any meaningful improvements in gaming over an i5.
BTW, 780 ti is faster than titan.