Okay for gaming you should consider getting i7 4790k,gtx 980 gpu,Corsair H100i 77.0 CFM Liquid
CPU Cooler,Asus MAXIMUS VII HERO
ATX LGA1150 Motherboard,G.Skill Trident X Series 16GB
(2 x 8GB) DDR3-2400
Memory.
Most importantly get NZXT Sentry LX Fan Controller for additional cooling.It will keep your system cool around 50-60 degree celsius.
Hope that works.If you need further assistance do ask..