A GUI for MySQL, are you kidding? I am using MySQL now for 4 years and never knew that...
Anyway, if you don't want to install anything on you client computer, install phpmyadmin. So you can administer your data base from within any web browser. http://www.phpmyadmin.net/home_page/downloads.php
Although the link points to the phpmyadmin home page, this is mainly for informational purposes. FC and RHEL should have this package available for install.