So you will probably want to go with either the 760 or the 770, I see that 200 pounds is roughly above 300 us dollars and that is where the 770 is, but for your power supply and the fact that the 770 probably cost more in UK, I suggest the 760, great graphics card works with all your parts, however if you can find a 770 in your price range, go with that. Hope this helps!