PCPartPicker part list:
http://uk.pcpartpicker.com/p/2P926h
Price breakdown by merchant: http://uk.pcpartpicker.com/p/2P926h/by_merchant/
CPU: Intel Pentium G3258 3.2GHz Dual-Core Processor (£43.14 @ Aria PC)
Motherboard: ASRock Z97 Anniversary ATX LGA1150 Motherboard
Memory: Crucial Ballistix 8GB (2 x 4GB) DDR3-1866 Memory (£130.73 @ Amazon UK)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive (£35.94 @ Aria PC)
Video Card: EVGA GeForce GTX 750 Ti 2GB FTW ACX Video Card (£120.96 @ Amazon UK)
Case: Cooler Master K380 ATX Mid Tower Case (£34.06 @ Aria PC)
Power Supply: EVGA SuperNOVA NEX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply (£57.17 @ Ebuyer)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer (£11.05 @ CCL Computers)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) (£79.37 @ Amazon UK)
Total: £512.42
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-08-14 17:07 BST+0100
You can drop that PSU down a bit actually left a tad high for upgrades later. That CPU does wonders with a basic OC for the money. The board allows you to upgrade CPU's later if you choose or for that matter even need to.