Gaming computer for battlefield 3

I will be playing bf3 and recording editing and rendering videos.

Cpu i5 2500k

Gpu MSI N570GTX Twin Frozr II GeForce GTX 570 (Fermi) 1280MB

Psu OCZ ModXStream Pro 600W Modular High Performance Power Supply

Mobo ASRock Z68 Extreme3 Gen3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard

Case haf 912

Hdd Western Digital Caviar Blue WD5000AAKX 500GB 7200 RPM 16MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive

Memory G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600

Optical drive samsung 22x

What do you think?
Budget $800