I have been contemplating switching to water cooling for my CPU only. I really don't want to set up a custom loop which would require fair amount of maintenance. My budget is under 200 USD. I have my i5-4690k (Not overclocked) idling at 45-50C according to CAM. I hear all in one sets like the popular H100i was a joke and that they explode and leak a fair amount. I also heard that huge aircoolers like the NH-D14 by Noctua was just as good as something like the H100i and had no maintenance. What easily maintainable solution would prepare me to overclock or upgrade one day while keeping very low temps?