WTB cheap(if possible) heatsink for OCing FX-8320 CPU

The title states it all: I want a cooler that will suffice a decent overclock on an AMD FX-8320 CPU. I would prefer something a little cheaper, and I do not mind if it is used. Moreover, I am aware of the Cooler Master Hyper 212 series coolers, but I was just hoping to find one used for cheaper here. Thanks.