Video Card: NVIDIA GeForce GTX 570 1.2GB 16X PCIe Video Card [+283] (Major Brand Powered by NVIDIA)
Power Supply Upgrade: 850 Watts - Corsair CMPSU-850TXV2 80 Plus Power Supply - Quad SLI Ready [+97]
Hard Drive: 1TB SATA-III 6.0Gb/s 32MB Cache 7200RPM HDD (Single Hard Drive)
Optical Drive: Sony 24X Double Layer Dual Format DVD+-R/+-RW + CD-R/RW Drive [+4] (BLACK COLOR)
Sound: HIGH DEFINITION ON-BOARD 7.1 AUDIO
Network: Intel Pro Gigabite 10/100/1000 Network Card [+34]
Operating System: Microsoft® Windows 7 Home Premium [+104] (64-bit Edition)
Should i downgrade PSU and extreme overclock, and upgrade to I7 2600k or leave it as is on I5 2500k? He will be running BF3 on a 17 inch monitor on ULTRA/HIGH settings with 1680x1050 res maybe higher in future.