don't get upset, just remember there is no wrong answers, just a difference of opinions,
the parts list in your build is good and will make you an excellent gaming pc, the fastest and best gaming pc for the money.
the parts list with and i5 cpu and 2x gtx 970's will also make you a great gaming pc but save some money.
the parts list with an i5 cpu and gtx 980 will make you a great gaming pc but will save you money.
the parts list with an i7 cpu and gtx 980 will make you a great gaming pc but will save you a little money.
the parts list with an i7 cpu and 2x gtx 980's will make you the fastest and best gaming pc but cost the most.
my personal choice is the same as yours, go with the i7 cpu and sli 2x gtx970's, and you won't regret it.
as to warranties and stuff, it's all total rubbish in my opinion and the tech's have to say that because it is actually legally binding, but in all honesty i've never ever had a problem returning a faulty part because i used an aftermarket cooler, and don't know anyone else who has either, ( if it's faulty then it will show up usually the first time you power on the pc and the seller will exchange it for you without question in my experience.) so will always use an after market cooler for my own personal builds because the cooler the better where electronics is concerned,
saying all that tho, no you shouldn't run to hot with a stock cooler at stock speeds, just a bit on the high side usually.
at the moment there is only one choice for performance and that's intel, yes amd will make for a great pc too, but intel is the current performance leader and by a big margin in benchmarks, as to actual use then i really don't think there's much in it, because all todays pc's have way more power than what people usually use, but there is definitely a small difference when it comes to heavy applications like gaming when the extra performance of intel will show up.
Edited by terry1966, 20 January 2015 - 07:42 PM.