I'm currently trying to attain a decent CPU cooler for an Intel 4460 for around £30. So far, from the snooping around on review sites I've been doing, there's nothing concrete or consistent on the entry-mid level that stands out as being particularly value for money. The case has a cooler clearance of 167mm and the RAM is sink-less, so no restrictions there.
Also, I'm a UK resident, so please hold back on the Cooler Master Hyper 212 Evo recommendations.