Huh, a GTX 970 is ridiculuous overkill for playing FIFA 15, Diablo III and LoL in 1080p. A cheap Powercolor R7 260X ($179) is good enough to play these games at max settings in 1080p.
CPU+ Mobo: MSI H97 PC MATE + i5 4460 (374)
RAM: G.SKILL PC 12800/1600MHZ DDR3 CL11 VALUE RAM (8GB) (97)
SSD: OCZ ARC 100 240GB (154)
HDD: TOSHIBA 1TB 7200RPM (69)
DVD-RW: LG 24X DVD-RW SATA OEM (25)
PSU: FSP AURUM S 500W (89)
Case: DEEPCOOL TESSERACT (65)
OS: WINDOWS 7 HOME PREM (130)
Total cost: $1003
Buy at PC Themes, #04-15, and ask for discounts. DIY yourself. If you can't into DIY, get PC Themes to assemble for you for a fee.