Best closed loop CPU water cooler?

I have been looking for a closed water loop. My budget is about 110£

What case do you have? >> Can you fit a h105, h110, kraken x60 or h100i? All of which will be a good choice if you have the room.

X60 is the best but probably out of his budget, maybe the H100i with some noctua NF-12 fans, would be a good alternative.

i'd agree with angel,

the H100i looks to be quite a bit cheaper than the x60 in GBP by like close to 20-30quint so you could buy two NF-12s and be around the same price of the x60 but have better airflow and probably about the same temps, plus you get that nice Corsair Link controls and a nice reactive RGB LED on your cpu block.

I have the Corsair 350D. I'm pretty sure it only fits a 240mm radiator. 

If you have space for a 140mm fan, then the kraken x40 is a really good buy.

 

I am running a Phenom II x6 1075t overclocked to 3.9GHz at 1.53V. At stock settings and voltage, the CPU uses 130 watts. and an Antec 300 case

 

with this overclock, under some light gaming gaming (running warframe) the temperature only goes up to 33C about 91-92f

 

Under full load (prime 95), it goes to about 50C

That is with using this cooling profile

 

Other than that, you can use an H100i for even better cooling (but it requires space to mount 2 120mm fans side by side.

if you have space for 2 140mm fans side by side, then the H110 will be good

THE best AIO liquid cooler is the CM Glacer 240L/360L.  They're the swiftech h220 replacements.  They're using the same pump and radiator config.  Expand ability for adding radiators, more blocks, multiple pumps.  It's a very well built cooler.  Pump may be louder than the h100i but it can be turned down as well with a fan controller or onboard fan controls.