Hi I plan on setting up a custom watercooling loop but I need some advice on cases. As of right now I am using an i5-3570k with a radeon hd 7970 which I know would be fine on a single 360mm rad, but if I decide to add two more 7970s later on what is the cheapest (still good quality) case I can buy that would fit two 360mm rads without modding? If smaller rads would be fine for my setup please tell me.