First Time Builder

My first Build. Your critque and expertise would be greatly appreciated. In particular is the PSU enough? Is the Video Card overkill for 1080p gaming? Thoughts on the Motherboard?

I want ultra settings and I'm thinking with fast approaching new console generation games using Unreal Engine 4 and Crytek 3 etc will hitting the streets and stressing these cards even more.

 

PCPartPicker part list: http://pcpartpicker.com/uk/p/qgfw

CPU: Intel Core i5-3570K 3.4GHz Quad-Core Processor (£168.94 @ Amazon UK)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£26.65 @ Scan.co.uk)
Motherboard: MSI Z77A-GD55 ATX LGA1155 Motherboard (£101.52 @ CCL Computers)
Memory: Corsair Vengeance 8GB (2 x 4GB) DDR3-1600 Memory (£31.39 @ Scan.co.uk)
Storage: Western Digital Caviar Black 1TB 3.5" 7200RPM Internal Hard Drive (£73.28 @ Amazon UK)
Storage: Intel 330 Series 180GB 2.5" Solid State Disk (£95.02 @ Scan.co.uk)
Video Card: HIS Radeon HD 7950 3GB Video Card (Boost Edition) (£227.99 @ Overclockers.co.uk)
Case: Corsair C70 Military Green (Black) ATX Mid Tower Case (£109.99 @ Overclockers.co.uk)
Power Supply: OCZ ZT 550W 80 PLUS Bronze Certified ATX12V Power Supply (£63.98 @ Overclockers.co.uk)
Optical Drive: Sony 5280S-CB-PLUS DVD/CD Writer
Monitor: Dell U2312HM 23.0" Monitor (£150.29 @ Amazon UK)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) (£71.28 @ CCL Computers)
Mouse: Gigabyte GM-M6980 Wired Laser Mouse (£25.44 @ CCL Computers)
Other: Sharkoon Tactix Gaming Keyboard (£15.23)
Other: Thermaltake Tt eSPORTS Shock Gaming Headset (£31.77)
Other: Xbox 360 Controller for Windows (£24.99)
Total: £1226.75
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2012-12-02 14:06 GMT+0000)

Cheers Mav

get a better power supply

like a corsair 750w