Anything I should know about my build?

What you should know is that the 4350 is an awful CPU and no one should buy it, and even more so no one should spend 100$ on a cooler for a 100$ CPU.

The 4350 will bottleneck the 390 quite heavily in many cases.

PCPartPicker part list / Price breakdown by merchant

Type Item Price
CPU Intel Core i5-4460 3.2GHz Quad-Core Processor $241.29 @ Vuugo
CPU Cooler Cooler Master Hyper T4 70.0 CFM Rifle Bearing CPU Cooler $26.23 @ DirectCanada
Motherboard MSI B85M-E45 Micro ATX LGA1150 Motherboard $87.52 @ DirectCanada
Memory G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1600 Memory $95.02 @ DirectCanada
Storage Samsung 850 EVO-Series 250GB 2.5" Solid State Drive $105.29 @ Vuugo
Storage Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive $86.29 @ Vuugo
Video Card PowerColor Radeon R9 390 8GB PCS+ Video Card $409.98 @ Newegg Canada
Case NZXT S340 (White) ATX Mid Tower Case $97.00 @ Vuugo
Power Supply Cooler Master 650W 80+ Bronze Certified Semi-Modular ATX Power Supply $77.99 @ NCIX
Operating System Microsoft Windows 10 Home OEM (64-bit) $123.00 @ shopRBC
Monitor BenQ XL2411Z 144Hz 24.0" Monitor $329.99 @ Amazon Canada
Keyboard Logitech K120 Wired Standard Keyboard $9.99 @ NCIX
Mouse SteelSeries Rival 100 Wired Optical Mouse $49.99 @ Canada Computers
Headphones Kingston HyperX Cloud Core Headphones $59.99 @ NCIX
Prices include shipping, taxes, rebates, and discounts
Total (before mail-in rebates) $1839.57
Mail-in rebates -$40.00
Total $1799.57
Generated by PCPartPicker 2016-01-05 07:24 EST-0500

The 4460 is massively better than the 4350, even though it doesn't really seem like it would be on paper as it's non overclockable, a whole 1GHz lesser in terms of clockspeed, and it has the same 4 cores. However, you can't compare hardware on paper. That's a fact. Just because a 1998 Toyota Celica can have 400BHP, doesn't make it "the same at a lower price" as an 2011 Audi R8.

Also the peripherals are awful, and judging by your monitor choice, you'd want probably to play CS:GO(?), and the mouse in the Devastator bundle is pretty much the worst thing i've ever tried out.

/r/buildapc Thread