Any socket 370/A HSF will work for the CPU and the mounting, just make sure whatever you get can physically fit without interfering with capacitors around CPU. My recommendation would be to get whatever inexpensive unit with an 80mm speed/temperature controlled fan. This way you get low cost, low noise plus larger 80mm fans are less likely to die from dust contamination than smaller 50-60mm fans.
Reasonable choices include whichever lowest end Arctic Cooling unit, or the Coolermaster X-Dream II, among others.