hey guys and gals, in need of a new cooler for my cpu. im new to watercooling as ive always gone for air coolers, i didnt like the thought of water in my machine haha but i have realised its the way forward for cooling. so my i5-4690k is overclocked to 4.1ghz and under full gaming or stress testing load it hits nearly 80degrees, this is with a hyper evo 212 cooler, id like something which can knock me well under 60 degrees. i have £50 to spend on a new or used cooler....any ideas would be great, ive been looking at the corsair h45 as its £50 new but like i said before im a noob at watercooling haha