Help Choosing PC Parts

[ManpreetG]

I need help choosing PC Parts for a computer I want to build, I'm Going to be using it for Gaming, Video Editing, And Graphics Designing. My budget is around 800$ And I need to get everything Including Mice/Keyboard, and Monitor(s). If a computer expert could help me out please do so! And for the case i want room for upgrades!

My Current PC(Its much better but I use it for different stuff and its my brothers and he's moving out so hes going to take it): pc specs:

Asus Z68 V-Pro
Intel i7 2600k
MSI GTX 580 Lightning X-treme Edition
Corsair AX1200
Coolermaster Haf X
Western Digital 1TB HDD
Noctua NH-14D
Asus 24x DVD Writer

 

[wilgoz]

Alright here are the hardwares I will recommend:
GPU: GTX 650Ti Boost Edition / AMD Radeon 7790
PSU: Corsair VS550 (550W)
Case: Venomrx King Cobra
Monitor: DELL LED ST2220L
CPU: i5 3570K
Since you're on a tight budget you don't really need "fancy" peripherals
Mouse and Keyboard: Logitech - K100 (keyboard) Logitech - B100 (Mouse)
Im not sure if you already have an OS
OS: Windows 7 Home Premium 64Bit
HDD: Western Digital - 500GB SATA-III 16MB Blue
RAM: G.SKILL 1600MHz 4Gb
There I bought them all for a bit higher price then your budget