Technoyard has made a roundup of some Socket A coolers :
As stated at the start, the DY1206BH-625 simply will not disappoint you in terms of performance. Of course you should be aware of the noise levels created, and provided you can handle this, the DY1206BH-625 will be a great choice. Priced at only US$29 this is one of the cheapest high end cooling solutions in the market. It has an excellent clip design, making installation a breeze.
The DY1206BH-625 is definitely focused towards Overclockers, and by looking at its performance it'll undoubtedly do the trick. Only reason I wouldn't go for one of these high end solutions is due to the fact that I no longer can stand the noise. After going through this cycle for quite a few years it was time to move on. Nevertheless if you're on the hunt for a good overclocking cooler for under US$30, give the Dynatron DY1206BH-625 a go, it'll not disappoint you