It sounds like what you had before. It's all right. Better than having it at 66 degrees, lol. I've heard some people got that 3700+ to go up to 2.8GHz on stock cooling. Usually, the Athlon 64s run in their 30's, but I guess low to mid 40's will do with a 20 degree cushion for ciritical threshold.
*Fact: Microsoft Window's Blue Screen of Death vs Computerforums.org's White Screen of Death. Which is worse?