Nice pictures. I dont suppose it was in a Pentecostal Church? Or maybe a Free Methodist?
When im using my boss's Fuji Pro 2 dslr I usually use iso800 indoors, I try to stay away from slow shutter speeds to prevent blur. I think a bit of noise which can be cleaned up is better than blur that cant be fixed. And the camera doesnt seem to have much noise even at 800. I checked out the noise on the Canon 300d and 10d and the 300d seemed to be a problem around 1600, but the 10d didnt seem to be to bad at 1600, but it was bad at 3200. I thought they had the same sensor in both so that doestn make sense why the 10d would seem better but according to the online comparison, it was.
In the first pic, to bad the men didnt have a red hankee or something in thier tux/suit pocket, would have looked nice since the women were wearing red.