8
I asked a simerlar question, about the security, but don't seem to remember getting a reply, but then I posted straight mentioned to cut the risk you could, and I would any way, protect the directory with .htaccess, then you run no risk of direct access to your database through PHPmyadmin.
The only downside to this, is you gotta log in twice, once admin, then second to phpmyadmin.
I thought it might be worth mentioning the .htaccess thing.