I am building my first water loop'd computer for my brother as a Christmas gift and have no idea what is considered "unnecessary/overkill" and what is "under performed". I am going to water cool the cpu, gpu (sli), and the mobo (asus maximus v extreme). The case I have is a phantom 820 (yes got it early) and it can support a 2x120mm radiator on the bottom and a 3x120mm radiator on the top. Should I use 2 radiators for this kind of setup or will a single radiator suffice? And should I do a push/pull configuration or is that unnecessary? Will all of these components fit under a single loop, or am I looking at going into two loops? Are the components I am using good choices or should I "cut back" or "spend more". CPU Block: Ek Supreme HF full-copper (or should I do the full nickel)? Pumps: Cant decide between the Aqua computer aquastream xt, alphacool ap1510, or the danger den cpx-pro. The resevoir I want is a 5.25" bay so it can be emptied easily. The one that I was thinking is Ek-bay spin resevoir- acetal CSQ. If there are components that have cheaper alternatives for a slight performance decrease I am willing to do that. Let me know what you think I need some help here.