[acropolite (Phil)]

Here's the guy I got the stuff from, he's based in San Jose - South of San Francisico and is reliable and reasonable on postage.
http://search.ebay.com.au/_W0QQsassZphoto1818QQhtZ-1
I bought the following items.
http://cgi.ebay.com.au/58-mm-filters...QQcmdZViewItem

http://cgi.ebay.com.au/P-Series-filt...QQcmdZViewItem

http://cgi.ebay.com.au/Circular-Pola...QQcmdZViewItem

http://cgi.ebay.com.au/Gradual-dark-...QQcmdZViewItem

http://cgi.ebay.com.au/Gradual-grey-...QQcmdZViewItem