I put an order for an S100 on Amazon and waiting for it. I was just wondering if anyone has done a comparison at high ISO between the G series (say G11 or G12) compared to the S100. I would be especially interested in low light, high ISO comparisons. I have both a G9 and G11 and use them with underwater housings for underwater pictures, but I find that the maximum reasonable ISO I can use is around ISO 200. I really would like something that can go ISO 800 as it would give more flexibility, and am thinking if I should get the S100 underwater housing.

