I installed a Thermaltake Bigwater SE CL-W0005-01 RT 12cm liquid cooling system. I didn't intend to do any major overclocking so I wasn't looking for the most powerful cooler available, but I did want something to remove most of the heat generated by the processor out of the case, not just mix more hot air around inside the case.

Since my son's case has a plexiglass viewing panel on the one side the lights from the cooling kit are aesthetically pleasing to him.

The one thing I don't like about this particular cooling system is the radiator fan control. The fan speed is controlled manually by a knob mounted into one of the slots on the back of the computer. How stupid is that? I would prefer the fan's speed be controlled by the motherboard's CPU fan circuit. I can fix this by modifying the wiring, but these guys should have been smarter than this. Forcing you to waste a slot for a pot knob, forcing you to monitor CPU and mobo temperatures and forcing you to assure access to the back of your system because you must manually regulate the fan speed as the system needs it is moronic. I don't know how much they paid the engineer that made this decision but s/he ought to have their head examined for holes.

Once I modify the wiring so that the fan speed is automatically controlled by CPU temperatures (via the CPU fan plug) it'll be a good cooling system. After all, computers are supposed to be doing stuff for us, not us doing stuff for them (other than regular maintenance).