Only a DSLR has low noise to be usable at 3200 ISO. If you really want low noise up to 3200, Nikon D3 or Canon Mk 1ds series will be able to achieve it. If you can live with some noise at 3200, any recent DSLR will do.
If you are thinking about compact, dont try 3200(or even 1600) ISO on them .........
I hunted for the F31D for so long, and at last I found it in HV and also someone else have reserved for it but never come back to get it, so the HV sold it to me. I was so luckly to get one after searching so many places.
It really worth the $$ spend as the ISO 800 for low lights condition I still don't need to use flash and everything turn out nice.
Now I am trying to search for the waterproof casing for this F31D, if anyone of you guys know where I can find it, do let me know.