Additionally I forgot to mention that I do intend to SAFELY overclock this system and so I appreciate that the cooling and power supply may be massively insufficient - I simply dont know enough about it yet to make an informed decision - though im learning more all the time 
Found this power supply: 650W Corsair CMPSU-650TX, single 12V rail
for the same price (£70) but cant edit my original post - so ill probably run with this.
Found this power supply: 650W Corsair CMPSU-650TX, single 12V rail
for the same price (£70) but cant edit my original post - so ill probably run with this.