So, I have been asking a few questions on these forums over the last two months concerning my desktop pre-build, post-build and now that I am thinking about selling and buying new parts I was wondering, for what I want to do, whether or not water cooling would even be necessary. So, my new build will possibly consist of 3-4 Sapphire 7970 Toxic editions in crossfire all running at x16 speed, Asrock Extreme11 motherboard and My current 3930k (currently have the beastly phantek dual radiator tower installed). My question is whether it will be worth it to water cool the graphics cards and the CPU if I have never done anything with water cooling? I read through the majority of the beginners thread and have taken classes in Heat Transfer and Fluid Flow, so I think that I can say that I understand how this works. I am just wondering mainly if the Toxic editions will really need water cooling or if I should even push them any further than they already are? If no, would the most reasonable method then simply be a closed loop cooler just for the CPU or would you guys do a custom job just for a cpu?