Uninstalling MySQL on Mac OS X LeopardEdit
Based on instructions found here:
$ sudo mysqladmin shutdown
$ sudo rm -rf /usr/local/mysql*
$ sudo rm -rf /Library/StartupItems/MySQLCOM
$ sudo rm -rf /Library/Receipts/mysql*
$ sudo rm -rf /Library/Receipts/MySQL*
$ sudo vim /etc/hostconfig # remove the MYSQLCOM line