However if you do want to overclock you might want to look for a proper upgrade of that not-so-bad Intel cooler. The choice you have ist vast and overwhelming, but you can use the following guidelines:
1. The quality of a CPU-cooler depends on the cooler itself and the fan(s) used.
2. Bad coolers are loud and don't cool properly.
3. Good coolers are either loud but provide loads of 'coolth' or vice versa
4. Excellent coolers do both.
5. You need to choose between a 'top-flow' cooler or a tower-cooler.
6. Top-flow coolers not only cool down the CPU but also the sorrounding chips like the voltage transformers. Also they are usually less tall compared to tower coolers but the majority falls into the 'Good Cooler' category. An exception are the up-market Noctua top-flow coolers.
7. Tower coolers are usually bigger and heavier, but they are the pro's choice for quietly cooling an overclocked system. The excellent ones are from companies like Prolimatech or (again) Noctua among others.
I would suggest you visit a website like www.quietpc.com and check out the pretty comprehensive list of cpu coolers they provide. Search for reviews on the net and the cheapest price and you're done .