Looking for build advice under 400$

[machinamonster]

Hello, so my current PC is having consistant blue screens, and now I can't even get it to boot off of windows. In the off chance my parts fail, I am looking for a good amount of PC parts that might help me upgrade my PC

Approximate Purchase Date: e.g.: Christmas time

Budget Range: 300-400$/Before rebatesw
System Usage from Most to Least Important: Gaming, light video editing in premiere and after effects, productivity

Are you buying a monitor: no

Parts to Upgrade: GPU,CPU,RAM,PSU,MOBO,hard drive

Do you need to buy OS: most likely no, will probably pirate

Preferred Website(s) for Parts: newegg.com

Location: Austin,Tx

Parts Preferences: Best experience/ Best part

Overclocking: Maybe

SLI or Crossfire: no

Your Monitor Resolution: 1920x1080

Additional Comments: No need for case or optical drive, will recycle

And Most Importantly, Why Are You Upgrading: PC very unstable, might be better to start fresh.

Anyone have any ideas?

 

[bodeen2012]

intel
PCPartPicker part list: http://pcpartpicker.com/p/25VmF
Price breakdown by merchant: http://pcpartpicker.com/p/25VmF/by_merchant/
Benchmarks: http://pcpartpicker.com/p/25VmF/benchmarks/

CPU: Intel Pentium G3420 3.2GHz Dual-Core Processor ($81.27 @ Amazon)
Motherboard: ASRock H81M-HDS Micro ATX LGA1150 Motherboard ($62.47 @ Newegg)
Memory: G.Skill Ripjaws X Series 4GB (2 x 2GB) DDR3-1600 Memory ($48.02 @ Newegg)
Storage: Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive ($53.37 @ Amazon)
Video Card: PowerColor Radeon HD 7770 GHz Edition 1GB Video Card ($87.41 @ Newegg)
Power Supply: Antec Basiq 430W 80+ Certified ATX Power Supply ($46.38 @ NCIX US)
Total: $378.92
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-11-21 04:36 EST-0500)
amd
PCPartPicker part list: http://pcpartpicker.com/p/25Vl7
Price breakdown by merchant: http://pcpartpicker.com/p/25Vl7/by_merchant/
Benchmarks: http://pcpartpicker.com/p/25Vl7/benchmarks/

CPU: AMD Athlon II X4 760K 3.8GHz Quad-Core Processor ($82.19 @ Amazon)
Motherboard: ASRock FM2A75M-DGS Micro ATX FM2 Motherboard ($81.26 @ NCIX US)
Memory: Mushkin Essentials 4GB (2 x 2GB) DDR3-1600 Memory ($45.89 @ Newegg)
Storage: Seagate Barracuda 500GB 3.5" 7200RPM Internal Hard Drive ($53.37 @ Amazon)
Video Card: PowerColor Radeon HD 7770 GHz Edition 1GB Video Card ($87.41 @ Newegg)
Power Supply: Corsair CX 430W 80+ Bronze Certified Semi-Modular ATX Power Supply ($28.02 @ Newegg)
Total: $378.14
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-11-21 04:34 EST-0500)