1st time build: Photo/video editing + some gaming

This is my first build...
Looking to build in one to two weeks, <$1300, usually keep my systems 3+ yrs

Usage: Photo/Video Editing (Adobe Elements/Premiere, Adobe Ligth Room, maybe Adobe CS4), regular home use and some gaming
Parts not required: keyboard, mouse, speakers
NewwEgg for parts
Parts Pref: Intel CPU
Overclocking: no
Monitor Resolution: 1920x1080
Windows 7

Parts

COOLER MASTER RC-690-KKN1-GP Black SECC/ ABS ATX Mid Tower Computer Case - Retail

Core i7 920

ASRock X58 Extreme LGA 1366 Intel X58 ATX Intel Motherboard - Retail

OCZ Gold 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Voltage Desktop Memory
Will this memory work or does it need to be 1.5 v?

OCZ StealthXStream OCZ700SXS 700W ATX12V / EPS12V SLI Ready CrossFire Ready Active PFC Power Supply - Retail

Seagate Barracuda 7200.12 ST31000528AS 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive - OEM

SAMSUNG Black 22X DVD Burner Black SATA Model SH-S223B - OEM

Acer H213H bmid Black 21.5" 5ms HDMI Full HD 1080P Widescreen 16:9 LCD Monitor - Retail

Video Card: Radeon HD 4870 1Gb, not settled on make because I don't know the comapnies
May add blue-ray burner in future