Waterspots on windshield????????

I have a 2000 Montero Sport that i bought used, it has some pretty bad water spots on the side windows, what is the best method of removing these water spots???
I have heard using very fine steel wool and soapy water and also about using a clay bar but wanted to get everyones opinion.

Thanks in advance

Glass polish


http://www.topoftheline.com/tolae/waterspots.html

If that doesn't work..try a clay bar!