Download:
http://www.simonwhatley.co.uk/installing-mysql-on-mac-osx-10-6-snow-leopard
http://dev.mysql.com/downloads/mysql/5.1.html#macosx-dmg
And follow the instructions, it will install the mysql at following location /usr/local/mysql
$ cd /usr/local/mysql
$ sudo scripts/mysql_install_db --user=mysql
$ cd bin
$ ./mysqladmin -u root password root
$ ./mysql -u root -proot
$ PATH=$PATH:/usr/local/mysql/bin
$ export PATH
$ mysql -u root -proot
Done :)
