Or you could go with an AMD FX 8320 and a 990FX motherboard if you haven't already purchased the 4670K
Here you go >>>
PCPartPicker part list:
http://uk.pcpartpicker.com/p/sLd6hM
Price breakdown by merchant: http://uk.pcpartpicker.com/p/sLd6hM/by_merchant/
CPU: AMD FX-8320 3.5GHz 8-Core Processor (£98.20 @ Scan.co.uk)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£24.25 @ Scan.co.uk)
Motherboard: Gigabyte GA-990FXA-UD3 ATX AM3+ Motherboard (£91.00 @ Amazon UK)
Total: £213.45
Prices include shipping, taxes, and discounts when available
VS Intel I5 4670K and Motherboard combo
PCPartPicker part list:
http://uk.pcpartpicker.com/p/GjNcYJ
Price breakdown by merchant: http://uk.pcpartpicker.com/p/GjNcYJ/by_merchant/
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor (£161.99 @ Aria PC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£24.25 @ Scan.co.uk)
Motherboard: Asus Z87-K ATX LGA1150 Motherboard (£86.99 @ Ebuyer)
Total: £273.23
Prices include shipping, taxes, and discounts when available