Hey all, I've recentely decided to upgrade my current build and have £400 to upgrade the build. I've been thinking of a few possible combinations of upgrades such as a new case and ram with a possible GPU upgrade but I thought I'd post my specs here and see if you guys can reccomend a possible upgrade here, Thanks 
Processor: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz (4 CPUs), ~3.3GHz
RAM: I had 2x4 Corsair Vengeance Blue 8GB (2x4GB) DDR3 PC3-12800C9 1600MHz but one of the sticks corrupted so I'm fairly sure I'm gonna have to buy some new ram
GPU: 1gb ASUS HD 6850 Direct CU
Case: Coolermaster Elite 334U
Motherboard: Asus P8Z68-V LX
PSU: 650w Powercool, 80 plus ( I know that it's quite a bad PSU
)
OS: Windows 7 Ultimate x64

Processor: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz (4 CPUs), ~3.3GHz
RAM: I had 2x4 Corsair Vengeance Blue 8GB (2x4GB) DDR3 PC3-12800C9 1600MHz but one of the sticks corrupted so I'm fairly sure I'm gonna have to buy some new ram
GPU: 1gb ASUS HD 6850 Direct CU
Case: Coolermaster Elite 334U
Motherboard: Asus P8Z68-V LX
PSU: 650w Powercool, 80 plus ( I know that it's quite a bad PSU

OS: Windows 7 Ultimate x64
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