Built my buddy his first gaming PC. It's a small, stealthy gaming build. I would say this build falls into the realms of budget/enthusiast (in other words a smart build). If money is an object for you, as it typically is for most, this is likely one of the smarter selection of parts for someone who wants the ability to knock out every new game for the least amount of money while still retaining a relatively future-proof PC.
Since this was a first build it took a good 5 hours to complete, and then another 3 hours of troubleshooting to figure out we had faulty motherboard.
The problem encountered with this build was the motherboard, AsRock Extreme3 R2.0 (pictured) which had issues, bios freezing up, and eventually died. We purchased a new mobo/cpu bundle the following day with an Asus M5A97 which works perfectly with FX-6300 CPU.
It runs BF4, Bioshock Infinite, COD Ghost, Skyrim w/ mods, with all maxed settings on 1080p display.
The total cost of the parts was around $1250.
If you want to do a similar build and shave off a few $:
-opt for HDD only rather than SSD/HDD combo
-go for 600W 80plus gold power supply. We only went with the HX750 because of its modular design and room to add SLI in the future
-Air cool the CPU. There are a lot of good options for AIR cooling that out-compete water cooling for a fraction of the price.