I'm actually looking at getting the Canon S3IS at the moment
eBay seem to have the cheapest ones (from Hong Kong of course), but otherwise
http://dirtcheapcameras.com.au/store/index.asp
and
http://www.digitalcamerawarehouse.com.au/
seem to have pretty good prices.
i'm just umming and aahing whether the $80 saving via eBay makes it worth buying it from HK...