You're looking at about 1500 - 2000 on the pc alone, with that spec though you could save money by lowering the wattage on the psu, gpu will only draw about 250 watts and everything else about 100, so a 650 watt power supply would be better and more efficient now, unless you want to run two gpus in sli, the cpu is boss but if you want to over clock that bad boy you're golf to need an aftermarket cooler, and for better overclockability an i5 would be better and save you just under 100, overall it's a really good spec, if you can afford it, go for it!

oh ok cheers, if u know the youtuber GoldGloveTV thats his pc spec i was just wondering.

If you have a budget of about 850 pound or so, use a TV for now because that's another 100 -200 pound for pc parts, I've got an i7 4770k and a nividia gtx 660 in my pc, and I can play all gamed in ultra high no problem, at the moment, you won't need anything too powerful, a 660 or higher would be good, always check the spec of the gpu as they determine if you'll get a good frame rate, more cores equal better, and if I was you I'd get an i5 and over clock it with a better cooler than the reference one, maybe the lucifer deep cool, then you should be able to over clock the i5 further than the i7, and if you went for a gtx 660 you'd only need a 600 watt psu, which is only about 40 odd pound from corsair, you would want as much money into the gpu as possible though if you want to play everything on ultra high!