I'm planning to overclock my i7-4770k CPU with liquid cooling and I was wondering if the XSPC Raystorm 750 EX360 kit will be enough cooling for a overclocked CPU loop which I might add a lesser overclocked MSI Radeon HD 7950 to later on. I will mount the system in a CM HAF X that will run from the pump to the CPU block, then to the radiator up top, and back to the pump. Will this setup provide the cooling I need to overclock my CPU, be compatible with the case, and maybe add a GPU later on? Also should I go for distilled water or a coolant (if so, which coolant?)