I'm also considering building my own PC somewhere in the next month once I have accumulated enough cash. I'm thinking about choosing the motherboard based on AMD FX-6300 (FM3+ socket), maybe an M5A97 or any cheaper alternatives I can find, it will have 8GB of RAM (2x4GB, or maybe I'll buy one 8GB and add another 8GB later when I can, making it 16GB). I also don't care a lot about 4k gaming since I never experienced it and I don't want to either because then I'll want it badly, so 1080p cuts it for me at the moment, so that's the monitor I'd get. I want to focus my money on the graphics card more than anything. Possibly on an R9 290x, but if I find myself unable to afford it, I'll get an R7 260x, should last me for years with 1080p gaming on high settings for years to come hopefully.