I would like to hit 4.5-4.6GHz on 2500K without going too hot.
Other alternative Im looking at is CM Hyper 212+ but its OoS at OC atm

gelid tranquillo and corsair A50 are the popular choices around the £25 mark. you'll easily get to 4.6Ghz with them

Now.. the problems seems to be the height... only ~158-160mm max
