Everyone, Thank you for all your help. There was some good stuff in there. But ultimately I followed this web site: http://allyourtech.com/content/articles/25_11_2005_setting_up_wildcard_subdomains_on_apache.php
This is giving me what I want, minus the environmental variable. Now that I think about it I should be able to pull out the entered subdomain using PHP and will use that to customize the content. Thanks for all your help. Aaron