I would choose this... i7-6700 without K if you don't have money, you can save on memory 50-60$...
I would go with Maximus VIII Gene or VIII Hero because they are enough good and rest to transfer for better processor.
i7 start to show up as recommended for games before some time.
That doesnt mean he is necessary but if customer have only little chance somehow to use CPU with HT Link could last much much longer.
And i7-6700 is cheaper and with new BIOS is possible to OC, enough 300-400MHz and on that speed he will serve well years.
Maximus VIII Formula cost almost 400$... If you buy Sabertooth or Hero you have money for i7. If someone tell you i5 is enough now, ignore him.
Such people always earlier figure out that i5 should be replaced again and i7 could stay more. You can save over 100$ on motherboard and memoryProblem is because Kingston now QVL 2800 or 3000MHz for some ROG boards. QVL is Trident Z F4-3000C15D-16GTZ 2x8 cost arround 120$, if you can find cheaper Kingston you can go with him, it's risk but both are cheaper than Dominator Platinum.
Do you understand i5 + Maximus VIII Formula = i7-6700 + Maximus VIII Hero/Sabertooth Mark 1.
I didn't tell you some bad motherboard, Hero ALPHA or normal Hero are excellent.

Decide what you think it's better but i7-6700K or non K are important part of your computer and worth saving on memory and motherboard.
I'm first who always go on premium motherboard, I never save money on that, except if need money for higher class of CPU or GPU and cheaper motherboard is similar quality.

And Kingston is not much cheaper, Savage 2400 2x8 cost 130$, for same money or cheaper is GSkill Trident Z 3000 2x8 QVL for ROG boards. GSkill is not bad, they have most world records for fastest kits and they are not overpriced. Even now they improve look of heatsinks. But if you like Kingston than go with Kinsgton.

I found information and TruePower Quatro 850W is compatible with Intel Haswell/Skylake processor.
There are list of supported models.

Hello Footslogger

The corsair dominators are over priced, the G.Skill trident Z would be a good choice and save you a few bucks.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231926

That is a great cpu cooler for the price and can handle up to 300w. Depending on the cpu socket type of your previous motherboard you may need to get a new mounting bracket for your cpu cooler. If you have a socket 115x board previously, it will work with socket 1151. It may have come with a socket 115x mounting bracket and shouldn't have any clearance issues with ram.

It will depend on the game how much better the 6700k performs over the 6600k, in some games performance is identical but in others the 6700k wins by a decent margin, if you can get the 6700k go for it.

http://www.bing.com/videos/search?q=6600k+vs+6700k+gaming+benchmarks&qpvt=6600k+vs+6700k+gaming+benc...

It would be a good idea to upgrade your psu to ensure compatibility as Chino says seasonic psu's are good, the evga supernova psu's are good too with a 10 yr. warranty. Psu's come in different certifications, bronze, silver, gold, platinum and titanium. It's good to go with at least a gold psu, the higher the certification the better for your electric bill.

For choosing a motherboard I would determine this by if you're going to do any overclocking, the hero and formula would be the boards to look at if you will be overclocking.

Now the one thing that will make the biggest difference in your gaming rig is the gpu. What gpu do you currently have and did you plan on upgrading it? Your monitor will determine what gpu you should get so you can list your monitor for us if you plan on upgrading your gpu.

Yes you can buy some cheaper motherboard for i7-6700.
For memory best option is 2x8 GB 2800 or 3000 MHz...
I would go and on lower speed only to save money for K processor or at least i7-6700 non K.
Now is possible overclocking and non K models but I think that temp monitoring and downlocking in idle are important parts and that's flaw of overclocked non K models.
But i7-6700 is still better than i5-6600K.
For memory you should look GSkill Ripjaws V or Trident Z and CORSAIR LPX...
Depend what cost less.
If you need to buy 2400MHz DDR4 and i7-6700K never mind go on 2400, but price between 2400 and 3000 MHz less than before several months.

Yes you can use your Zalman cooler and with lower memory as CORSAIR LPX and GSKill. He is compatibile with LGA1151. You asked for SnR, that's I think signal/noise ration, higher value more clear sound...
If you don't have sound card and you can choose ASUS Z170-PRO Gaming motherboard, she cost arround 150-160$ and she have excellent SnR with SupremeFX Audio, 115dB.


You can pay attention on this memory

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231878&cm_re=GSKILL_RIPJAWS_V-_-20-231-878-...

One guy explain that she work only on 2800MHz on ASUS Z170-PRO Gaming but guy from GSkill technical support explain that newer kits will work better and say this kit is perfect for Z170-PRO Gaming. That was before several months and probably now this memory is not bad choice for that money. If you want something else, Trident Z cost 30$ more on same speed 3000MHz.