Create Custom CultureInfo

http://www.codeproject.com/KB/books/CustomCultures.aspx

http://blog.mediawhole.com/2007/08/creating-custom-cultureinfo.html

http://msdn.microsoft.com/en-us/library/ms172469.aspx

http://aspnet.4guysfromrolla.com/articles/030304-1.aspx