In prep for a new build I will use my old case but what is a good watercooling set to get? My case already has the holes and space for a small cooling system. I know that Gigabyte also has their own watercooling systems that I can order for my exact casing, however If I am going to have a friend OC the core 17 920 to 4.0ghz plus, I want to know what I should save for?