What about monitors. keyboard mouse, and speakers?
Dont need the second bluray. Your storage is terribly inefficient.
Get your 1 256GB for games and OS.
Get Caviar black for storage.
You cannot even utilize 4 680s. You can only run 4 monitors. 3 in gaming. I would recommend a large set of IPS monitorshttp://www.amazon.com/Nixeus-Resolution-2560x1440-Monitor-NX-VUE27/dp/B008M08SN6
and even with 3 monitors you would max out at ~11 MP. Deeming the 4th card pretty useless
Just get 3 the performance increase on the 4th card is pretty small and it usually just ends up handling physx which a 680 is unnecessary for not to mention even if they split the work the fourth and sometimes the third card would just reduce frame time.
You can assume that 12 GB of VRAM would be enough. Also make sure you have enough airflow for those. The top 2 are going to be very hot. I would mod a 200mm fan Right where they sit If I were you if you got that.
May I also state that SLI and crossfire both have their problems and should be avoided to an extend in high numbers (like 4) because the more cards the more chance for problems.
If you are hell bent on 4 GPUs go for the 690 and just get a pair.
Your computer is going to put out heat as FUG either way. Watercooling is not as hard as it seems. Also, why go all out this far and not just watercool the damn thing? it seems like a cop out if you are gonna settle for crappy cooling on hardware that is nothing but the best.GTX waterblocks
Get yourself an EK Supremacy or whatever is top dog now and two of these Thugs
and these Things
you even get a discount for buying too many!
Get yourself a pump and some nice fittings fill the thing up (Fill the radiator on its own then tie it in) and you have temps that are unheard of for your setup