This was a build I put together specifically as an extra machine to sell for tuition money. I also really have fun doing builds so I do average at least 10 builds per running year.
These parts were purchased far below their custom prices but I put a reasonable "median" between what I paid and their new prices. I believe these exact parts new run around $700 together not including shipping.
CPU, mobo and RAM: These were bought as a combo on a forum I peruse regularly and I couldn't pass up the price. CPU has no issues with demanding games like BF4 which it handle at high settings Mobo was a good buy considering it has many modern features and allowed me to use the SSD I had already. RAM this was the cheapest way I could get 8GB in this system and considering I paid about 55% of the current market price for 8GB of RAM I am pleased. They also passed an 8 hour run of memtest86 V6.0 so yeah
CPU Cooler: Got it almost 50% off one day and I knew it would handle a Core i3 easily and wihout making much noise. I was right. It works great, but I had to change the fan from "push" to "pull" to clear the ram. Great for mid range CPUs. 56C load temp on silent mobo fan curve and that's after 8 hours of OCCT large FFT test.
Graphics: This was the lowest performance card I would consider in a new 1080P gaming build specifically because of how cheap they are for the performance. High settings in BF4 no issues on 14.12 drivers and it was able to hit 1000 core 1250 memory on the overclock. It isn't the quietest thing in the world overclocked, but stock settings it is pretty darn quiet and most games play at high settings at 1080P. Also only hits 70C in furmark with the overclock so that's good too.
SSD: I had it laying around hoping to go into my laptop then I realized I am getting rid of the laptop soon so why not put it in a gaming build. Boots very quickly and loads games fast, too. A+ drive especially at the current prices around a c note
Case: Sale item on newegg was a great buy at about 1/3 off of normal price and it came with several fans which I wanted. I added 2 high speed fans in front which are mobo fan controlled and allow for closer to positive case pressure if all fans are at 100% speeds.
PSU: I have now used 3-4 of these in builds and none of them have had any issues plus they run pretty darn quiet and cool. Also they are consistently cheap and from a great brand.
DVD Burner: Pretty much only used for Windows 7 install
FANS: Great performers for the price and after buying about a dozen of these in the last 5 years none have failed and they are balanced noise/performance/price ratio. Also blue LEDs matched the mobo and GPU colors so bam.
This thing can get into a BF4 game in 2 minutes flat from being turned off. It performs flawlessly despite the ebay/forum parts that are used and I am very happy with the results