Hi. I mae a few edits to your build. your motherboard is in the itx form factor, which would look weird in a full-size case and also cost more. I added in a full-size atx board for $50 less. Unless the aesthetics are extremely important to you, I would pay about ten dollars more to get a 240 mm AIO (doubling the size of the rad so theoretically doubling the performance). If you really want your AIO to stick to your red theme, you can pick up an AIO sleeving set from cables mod to add some extra flair https://cablemod.com/product/cablemod-aio-sleeving-kit-series-1-for-corsair-hydro-gen-2-red/ For your PSU, I think that 750w its way more than what is needed. You can easily get by with a 650w and save some of your budget. I also switched out your SATA SSD for an m.2 variant. This will greatly increase your read and write speed and overall make your system run faster. More info on that here http://www.tomshardware.com/answers/id-2947712/sata-ssd.html . For the monitor, you mentioned that you wanted 1440p and 60 fps for AAA games. So I added in a 1440p monitor that, while having slightly worse build quality, should do the job just fine. Here is a version without the 1440p monitor, https://uk.pcpartpicker.com/list/MyZWgL . As for your graphics card, the 1080 you selected should be able to run 1440p 60fps for many years to come in most games, but if you wanted something close to your budget point, the 1070 would also be a good option that should run most AAA games (maybe not pubg but that mostly up to optimization on their end) at 1440p at 60fps for a decent amount of time. here is a list with that change https://uk.pcpartpicker.com/list/MyZWgL . In conclusion, you actually did a really good job. It's quite impressive that a beginner could put together a list with no incompatibilities (God knows I returned way to many things after ordering them for my first pc). That being said, here is my final list of changes that I would recommend, https://uk.pcpartpicker.com/list/kVZWgL . If you are desperate to fit in your budget, here is another option that fits a bit better, https://uk.pcpartpicker.com/list/mVHp7h. With this build, you will get slightly worse gaming performance but more cores (better for productivity). It also swaps out your AIO for an air cooler (difference is here https://www.youtube.com/watch?v=2j80dQIxkdc) which should be more than enough if you aren't overclocking. Whatever you go with, I would encourage you to build it yourself for the pure fun and satisfaction you will get from it (but that's just my opinion). Even if you don't, I wish you the best with your new pc!