I am looking for a wide f2.8 zoom and considering the Sigma 18-50mm f2.8 EX DC Macro HSM- I have been *delighted* with the Sigma 30/1.4- which is also EX/HSM. I also just ordered the Sigma APO 70-200mm F2.8 II EX DG MACRO HSM from B&H but have not got it yet. I am also considering the Sigma 24-70 to pair with it but think I would rather have the 50-70mm gap and add the wide end range- plus the 24-70 is not HSM. Anyone using this lens? I would love to hear some feedback or see some examples.