2nd Gaming/enthusiast build

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Made a $750 dollar system 2 years ago at 15 and at the time the future proofing seamed sound but now it is becoming a little outdated.

  So confident in spending more money in a second build this is my current parts list  http://pcpartpicker.com/p/VtbhvK there are plenty of questions which need asking as this is only my second build and my first with water cooling.

  I understand I could go with an i5 and not come close to bottlenecking the gpu but the system is made in mind that in the future if it is needed I can set in a second 780 and run them in sli, (a more balanced gpu/cpu combo imo)

  Firstly I hope to cool the gtx 780 with the Kraken g10 and the corsair h60 cpu closed loop system and the h100i to cool the cpu.

 Im pretty sure a h100i would easily be able to handle a 4.6 to 4.7 overclock of the 4790k at the cpu is already at 4ghz however what do you think about the h60 for the cooling of the 780 which I hope to mildly overclock as well?

  Secondly, on the list I'm dedicating around $200 of the build for water cooling the cpu and gpu, is there any custom water cooling kits which you could suggest which would be in the similar price range? 

  Understandably a custom water cooling loop is more difficult to assemble but If there is a proper custom substitute for the h100i,h60, and kraken g10 I would be all ears.

  The psu is another point of worry as I know Corair is a very reputable power supply so when I saw a 80+ gold 750w for only $85 I was a little worried about proformance though Enthusiastic about the price.

  750 watts will be overkill for the innitial build even with overclocking but a second 780 might require it.

 Finally this pc is meant to primarily for gaming and multi-tasking so please comment if there would be changes or other info for such a build.

  Finally overall suggestions would be greatly appreciated, I understand that there are a lot of people here who are MUCH more knowledgeable than I am when it comes to this. 

 Excited for my second build but not excited enough I'll run in blind as to aspects I'm not familiar with. 

   Thanks for any input- CallsignLOBO

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What are the specs in your current system? Maybe you cold make a few choice upgrades without blowing the bank on  an entire new system.

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This AlphaCool kit uses a 240 rad and has a nice Res on it. Also, JaysTwoCents has a video on how to install it.The even better thing is that it is upgradable. These parts are not just parts made for a kit. you can buy all parts separately, but AC has thrown in a kit that works out of the box. It also works with all Major Sockets from AMD and Intel. however you will be going $70 over budget. but it IS a custom loop. You can add in a cooling block later for your GPU. If you are pretty certain you will run in SLI later, you will need a big PSU.

EDIT: Whoops! forgot to add link!

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My current pc is a 2500k overclocked to 4 ghz with an aftermarket cooler and a 7870 ghz , 2gb edition, got a msi atx motherboard and a 500w corsair psu.

  The main problem with upgrading it for gaming is the two options of getting a more powerful card or running 2 in sli, is the current case barely fits this gpu as far as length and only due to a mod of taking out part of the drive bays. 

  Either way I doubt that my power supply could support a second card so upgrading my current system will be a giant operation including a new case and power supply which will entail moving everything out of the current case.

  In the end I would rather just make a build from scratch, It is a chance to move to the newest 4th generation intel proccessors and a much more powerful video card.

  

 

As to the water cooling kit, you've got me interested with the kit and a gpu block in addition to it though is the pump powerful enough to run through a second component? 

  Might be over thinking it, but certainly another way point in the loop would add more resistance for a pump to deal with.

  Also here are a cupple links that I could get opinions on http://www.ebay.com/itm/Water-Cooling-Kit-240-Radiator-CPU-GPU-Block-Pump-Reservoir-Tubing-Best-Value-/380854183129?pt=US_Water_Cooling&hash=item58acada4d9   , and http://www.aliexpress.com/gpu-cooling-kit_reviews.html

  To say the least ,these look a little cheap but as I haven't worked with water cooling kits the question arises would these even work?

  And if they did work what would be the chance of them crapping out in the first few months due to cheap parts?

  Definitely thank you for the feedback so far