Rapid Hosting
Shared hosting, reseller hosting, and VPS server hosting since 2003
we have used everything from WHMAP to modernbill to client exec and we finally found home in WHMCS
http://www.rapid-hosting.org
http://clients.rapid-hosting.org/clientarea.php
http://clients.rapid-hosting.org/submitticket.php?step=2&deptid=004