Hey, thanks everyone for the input! I'm currently deciding b/w the Canon Canon PowerShot S2 IS and the PowerShot S3 IS.

All that's left is to find a store that carries both so that I can go carry both of them around, see how big my purse will have to become to carry one or the other. I'm leaning towards the S3 because it's darker (in color), faster (in shutter speed), and slightly smaller than the S2 (in ounces).

Woohoo, new camera land, here I come!