I have not built a new machine in 5 or so years, been using a couple laptops to satisfy my gaming needs. Any help would be awesome, trying to stay under 1k for the full build. Will need a PSU, RAM and a HDD.
If you do not ever plan on using dual gpu (SLI) then could save $20 on the mobo with an H87 unless you plan to overclock in which case you would need a i5-4670k and a z87 mobo.
Put a SSD in the build for boot up and core applications.
Case selection is pretty much up to your personal preference, i just picked a random decent one.
Note: Any gtx 770 will work just as well, I just like EVGA