That monitor looks great, I just bought a Crossover 27" QHD (IPS panel by LG), and it's amazing - even though it's only 60Hz, and there's some motion blur. Crossover is a South Korean brand, so it's only $400, shipped directly from Korea. But if I had the money, I would choose the Asus, it's better for gaming. For the rest of the build, I'd go for the 4970K Devil's Canyon CPU, for the higher base clocks, lower temps, and resale value (for after the next upgrade). For the motherboard, I would never choose an Asrock board, especially for my main gaming rig. They are #4, behind MSI, Gigabyte, and Asus, and have the worst QC of them all. I prefer Asus, they make about 50% of all boards, and they have the most resources for R&D and validation with other components. They also have the best UEFI BIOS in the business, and better overall firmware and driver support. I would choose an Asus Z97-Pro, Z97-Deluxe, or maybe a Z97 Hero. The motherboard determines the integrity of the system, no way I'd cheap out on this, a $100 board in a $3000 system is ludicrous. Also, the RAM you chose is good, but 2400 MHz is better, and costs about the same, so do your research there, faster RAM = faster system. If you choose all your components wisely, the system should be viable for at least 3 years, especially when fast M.2 SSDs and SATA Express drives become available, so Z97 is the best option for future-proofing. I noticed that you haven't considered CPU cooling. Even though you're not overclocking, an i7 can overwhelm the stock cooler under load (90c+ under full load!), so I'd at least get a Hyper 212 Evo or similar air cooler. Ideally you probably should get an all-in-one liquid cooler, like the H100i, for quiet operation and very low temps, and because a liquid cooler causes no strain on the board and isn't in the way so much like a large air cooler. Also it looks much better, especially in a $3000 system. Balance is the key, you should never use low-end parts in a high-end system, because when that $100 motherboard or $50 power supply goes up in smoke, it might take your $700 video card with it, or your SSD, RAM, CPU or everything else if it burns long enough. The amount of research you do before buying anything is directly proportional to the ultimate quality of your build. You have at least 2 weeks before Devil's Canyon is released - I would spend that time reading a lot of hardware reviews, and refining the build into a well-balanced system with no compromises.