>>12
Right, but Antarctica will also be mostly flooded.
>>18
I think we can do an experiment with this: 2 100mL beakers, 180mL of fresh water, 2 10g blocks of ice (assuming water is 1g/mL), a little bit more ice, and lots of salt.
Pour 90mL of water in each beaker, and saturate one of them with salt. Place 10g of ice in each. The one without salt will be full, while the one with salt will not be full. Add ice to the saturated beaker until the beaker is full. Wait until all the ice melts. I suspect that the salty one will overflow (since it has more water content, while salt doesn't appreciably affect its volume).