Listing direct from the manufacturer, Professional Products. Appears to be a good price. I think this is less than I paid for the non-polished version on a group buy several years ago.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=221281372463&ssPageName=ADME:B:SS:US:3160
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=221281372463&ssPageName=ADME:B:SS:US:3160