For gamer that is easy motherboard wise.
MVIF - real good sound and a top top board. You do not want the Extreme simply because that is designed for OCers and bencher's.
CPU - again easy choice right now. 4770K
Good cooling system H100 or similar and you have a stonking foundation.
VGA well that is up to you. I use both AMD and nVid products and I like both. But some folks will only use one or the other.
Titan is tops right now. But not worth the money.
GTX 780 is the best nVid that is worth buying 10% less than a Titan but 25% cheaper no brainer right now.
However I still like my 7970 cards simply because if their is a new AMD offering in the next quarter I can put the new card into my system with the current card for ChrossfireX - with AMD the cards do not have to be the same model or even the same series. Much better upgrade p ath.
The only other key is a SSD.
RAM size matters not speed right now. 16GB is the sweet spot for gaming. 32GB if you have cash to splash but you will not use it all.
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