wrt54g+freeradius+mysql

Hello everyone. My name is Gustavo, and I'm from Argentina. I need to deploy a wireless network with WRT54G routers. I need to check users and passwords against a freeradius server, and the latter with a mysql database. My idea is then to implement an LDAP, but I decided to try to start mysql. I am a newbie in this topic. Let me know if you can recommend any tutorial. Thank you very much!