No I won't be overclocking , prefer stability and silence over a bump in performance. Budget is also a concern, trying to keep the system under £320 for CPU (3570K), Cooler, Ram (8GB), Motherboard (Gigabyte Z77-DS3H). The BeQuiet cooler looks like a good bet, looks like it will clear the Corsair XMS3 ram I've chosen ok. Going with 2 sticks of 4GB for now, but will add another two soon.