Improving performance for Mysql
Warning: mysql_connect(): Too many connectionsThis is an error I dread

Database server is a Dual Xeon 2.4 w/ 1.5GB Ram / SCSI drive. Along with 2 P4's w/ 1GB Ram / IDE Drive that does webserving and images.
Now when we do start getting these errors the CPU is still 50% free.
Ideas, thoughts, need more info?