The FX-4100 may be the OC CPU of choice for many AMD folks looking for a good value as it's been shown to OC to 4.6 GHz. at the default voltage, with the OEM HSF. The 1000 MHZ. OC results in a 27% increase in performance in Cinebench R 11.5. With a street price of ~$120. this CPU could make many people very happy.
http://www.legitreviews.com/article/1766/1/
http://www.legitreviews.com/article/1766/1/