I use it for gaming (mainly) and working.
CPU (i7-4790K): I went with this because it was one of the best CPU back in 2014 (beside, I don't like i5 either). I have a tons of background programs so it should be good for this since this thing is a quad-core with hyper-threading. I'm currently running it at 4.8 GHz.
CPU cooler (Corsair H100i GTX): Picked this up at Best Buy on Black Friday. I'm pleased with this. I upgraded from a Hyper EVO 212 from Cooler Master. This thing keeps my CPU idles at around 29 C and loads at around 40 C.
Motherboard (Asus Z97-A): It does what it supposed to,
Memory (Corsair Vengeance Pro): Used to run many background tasks.
Storage (Samsung 850 EVO & Toshiba 2 Tb hard drive): They are good. I encountered no issues at all. SSD for Windows and HDD for the rest.
Video Card (Asus Radeon R9 390): Upgraded from the old EVGA GTX 670 FTW. This thing is a beast. I can max out nearly every games on 1080p. This thing came with the LED and back plate. It's very hot though when idle and load.
Case (NZXT S340): Good case. Although it's small but it provides enough space for cable management.
Power Supply (EVGA SuperNOVA G2): This thing is my computer's powerhouse and it does what it supposed to do.
Wireless Network Adapter (Gigabyte): This provides me fast internet connection. Unlike many gamers, I don't use Ethernet.