Worth buying for the comical box alone, an apparently deadly serious attempt to appeal to Westerners by badly Photoshopping the face of a scowling teen - yes, called Andy - into a Samurai helmet

The Mars looks good: it's small and discreet, and like the ASUS, has its fan fitted internally, which serves to both appear tidier and muffle some of the noise. It unquestionably looks great, though the sacrifice is fairly average heat management.

This stylish offering is our favourite. We are jealously clinging onto it for our thrice-monthly rig upgrades and draining the planet dry of thermal paste as a result. There is a pleasing pro feel to it, and it's entirely self contained

If the BTF90 was the kid who grew up to become captain of the rugby team, this is his clumsy, weak-chinned brother, determined he's still capable of anything his sibling is

A cooler this big must be capable of bringing about a new Ice Age, right? Nope - this brute treated our CPU as well as its stock cooler did. But Coolermaster reckons its sheer girth means it'll suck heat away from RAM, mobo and GPU too

Not quite sure where Apack got the idea that hardcore gamers and modders are really into butterflies, but that's the risible motif stuck on the top of this slim tower. That aside, it keeps temperatures low even under full load

Take a quick glance at the V60 and you're unlikely to be impressed by its humble appearance. With the name Asus on the top you could be forgiven for assuming this early effort doesn't hold much promise

Office opinion of this CPU cooler is quite distinctly polarised between 'very cool' and 'a camp as a boy-scout's outing'. There's no denying, that if you pack one of these into your rig, it'd be the kind of thing that would draw a crowd at a LAN party

So you know the score by now - greater surface area means a greater ability to dissipate heat, and the Silent Knight CPU cooler has the surface area of a football pitch. All right, that might be a wee bit of an exaggeration

You really can't beat setting up a water-cooling kit for that Doc Brown feeling of kerrrazy scientific endeavour. Especially when that kit comes with water colouring and UV-reactive dye.

Standing on the ground, the Reserator 2 is almost the same size as a PC tower, resembling a portable radiator in both appearance and functionality. Using a liquid cooling cycle, heat is transferred from your CPU and video card...

Zalman uses a pro-gamer to brand this heatsink at the enthusiast looking for better gaming performance. However, 3D rendering is more GPU bound than affected by the CPU, so the association is not an obvious one.

The Freezone CPU cooler combines the best things about other cooling mechanisms, while producing as little noise as possible. The combination of a peltier, liquid pipes and an active 120mm fan to cool the massive heatsink...

The packaging claims that this is a 'charming looking' case fan. We beg to differ, unless, by 'charming', Asus means 'boasts an eye-bleeding colour clash'. The eye-watering bright green fan aside...

We've looked at Zalman's 'flower' coolers several times before, and rather admired the Intel version. This AMD incarnation, resplendent in understated black and chromed copper, hasn't changed our minds.

LEDs don't often suggest a good product. You'll usually find what's been spent on pretty flashing lights has been deducted from the rest of the budget

You may be thinking your laptop is feeling a little warm. So cool it down!