http://www.xml-sitemaps.com this site has limit of 500 pages unless you pay for it. Any unlimited free one? Cheers Mitchell
GSite Crawler dot com is included in the list of google sitemaps third party softwares for creating sitemaps.
i'm using xml-sitemaps.com since a few months and found it fast and reliable, anyway my site is quite small (less than 200 pages). Will give a try to other suggested services, thanks!