suzyQ, this page contains a list of expanders, compares them as to features, gives price information, and has links to their web sites where one can learn more.
http://home.earthlink.net/~agjon/list.htm
The site below has forums for some of the expanders:
http://www.productivitytalk.com/forums/index.php
And some of the software vendors' sites also have forums for users.
HTH
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carolT
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