60C idle is way too warm. Is your system overclocked? If so, you may need to back it down some. If not, your existing cooler may not be securely mounted, or there may be way too much or not enough thermal paste.
You may just need a better cooler. I use and recommend the Xigmatek Gaia over the more often parroted but slightly inferior Hyper212 EVO:
http://www.techreaction.net/2011/07/07/review-xigmatek-gaia-sd1283/7/
http://www.techreaction.net/2011/11/27/review-cooler-master-hyper-212-plus/4/
Unlike the Hyper212 EVO (ignore the URL; it IS the EVO they tested), the Gaia never throttled, although it wasn't always the coolest depending on the fan used. Both got awards, but the Gaia is usually cheaper as well, and up to 6db quieter (stock), making it the better choice.