Radius w/ MySQL?

nightrav asks: "I'm one of the systems administrators at a small ISP (about 20k customers) and we're currently looking on moving to a different Radius solution. Currently we are using Merit with LDAP which is proving to be extremely slow and causes a great deal of authentication issues if a Total Control chassis reboots or experiences some other problem that causes it to dump its users. We would like to use some sort of Radius/MySQL solution for authentication and accounting and were wondering what solutions the Slashdot community would recommend."