PCPartPicker part list / Price breakdown by merchant
I know I am going against the grain on this build. I prefer Nvidia over AMD due to many reasons I won't get into. I am not a fan of Crossfire or SLIing GPUs currently (hopefully it will get better). I also am not a fan of spending 600-770$ on a monitor just for 1440p and 144hz. I think that is extremely expensive and basically people who jump on such things are beta testing it for us regular consumers who in a year or two will be able to pick it up one for much cheaper. I believe they are more generally geared towards enthusiast level stuff as of this moment.
So lets get into it.
CPU: Was fine.
CPU Cooler: I am not a big fan of liquid cooled systems. They tend to be louder, not worth the price for performance, and mainly I think are for enthusiast. I went with the best bang for buck CPU air cooler.
Motherboard: Normally I would recommend buying a motherboard that also includes the wireless adapter but for this build I focused more on a color scheme.
Memory: I went with low profile that was priced pretty well. DDR3-1600 and up, CAS 10 and below, 1.5v and below, low profile optional (usually cost more), either 1x8GB or 2x4GB, should be priced around 50-57$. Also stick is black and white so it matched the color scheme.
Storage: SSD I went with one with better specs and has been priced really well (we have seen it drop to 90$). HDD I would recommend WD Blues or Seagate 1TB editions. 7200RPM, 64cache (doesn't matter really), and 1TB should be around 50$ (we have seen WD blues for 40$ on bestbuy).
Video card: Currently there is a pretty good sale on this GTX 980. If I had the money I would jump on it. http://www.newegg.com/Product/Product.aspx?Item=N82E16814133580
Case: Definitely liked your choice. Has great features and at a good price.
PSU: A bit over priced again for my liking but it is fully modular, gold efficiency, and the series is pretty good.
Optical drive: On a pretty good sale and I would pick it up now before it ends.
Monitor: Went with just a 1080p at 144hz 1ms reponse. If you absolutely feel the need for 1440p and 144hz and you feel it is worth shelling out 600-770$ on it then by all means you probably should go with the one you choose and with R9 290 series crossfired (like others said they are actually priced at 240) and bumping the PSU up to a 750W.
Keyboard: Really good sale on a refrib on Razer Blackwidow Chroma RGB keyboard for 100$. http://www.newegg.com/Product/Product.aspx?Item=N82E16823114057
Mouse: I just went with the death adder chroma to go with the keyboard. (I know I am absolutely going against the grain on this subreddit's Razer opinion but I have had a lot of Razer products and they have served me really well.) SDK is out and I personally haven't messed with it but have looked at projects. We are going to see some really cool things with Razer Chroma products.
Overall if you again feel the need for 1440p and 144hz then buy on sale. /r/buildapcsales is a wonderful subreddit geared towards such things. You can absolutely make your build 2300$ if you buy on sale with budget of 2000$. Things in my recommendation I would currently jump on are the case, video card, optical drive, SSD, RAM (questionable but probably could go lower), and keyboard. I personally would wait for decent sales on the others.