The HSM II is on the D60 very quietly humming and normal everyday situations quickly, whether it is sufficient for racing dogs discussed different forums - some create great pictures with the lens (images for example in the DSLR forum), others fail supposedly slow due to HSM II.
The Sigma 50-150mm 2.8 mM leads a shadowy existence beneath the lenses: many rich the beginner lenses, and put more emphasis on focal length than light intensity and sharpness, or access to the larger 70-200 / 2.8 lenses. Accordingly, there are relatively few users / -inside the Sigma 50-150mm 2.8 EX HSM II.
It depends on the targeted application area: For me, it is the ideal family & portrait lens, especially if you take also moving individuals, as current children or dancer, photographed with a little distance would - then that is good for the image stabilizer in other lenses nothing. But I also click to zoom zoom anything from a greater distance, but the focal length is too short. In addition, the weight of the D60 is still so low that I can still wear loose in a bag around the waist camera and lens - and also come without a tripod handle. The only drawback is the "close range" of 100cm (Edit: previously a mistake with "mm", therefore the notes) - closer can not.