I think
Annie is fine as a nn and can be easily used for just about any name that has an "an" sound in it.
Andrea is nms.
Names containing "an"
http://www.behindthename.com/php/search.php?terms=*an*&name=yes&gender=f&usage=&operator=or
Names that start with "an"
http://www.behindthename.com/php/search.php?terms=an*&name=yes&gender=f&usage=&operator=or
“It is better to keep your mouth closed and let people think you are a fool than to open it and remove all doubt.”
~Mark Twain This message was edited 11/14/2006, 8:06 PM