I just put in the server optimization request. To do so I needed to dig up the server specs. for you geeks out there that care about such things. here they are.

WEB SERVER
2 x Intel(R) Xeon(TM) CPU 3.80GHz Dual Core, 4GB RAM, 2 x 73GB 15k SCSI
CentOS 5, Apache v2.2.3, PHP 5.29, MySQL 5.0.77, XCache w/ 'variable' cache

MASTER DB SERVER
2 x Intel(R) Xeon(R) CPU 5160 @ 3.00GHz Dual Core, 8GB RAM, 2 x 73GB 15k SCSI Raid 1

SLAVE DB SERVER
2 x Intel(R) Xeon(TM) CPU 3.80GHz Dual Core, 4GB RAM, 1 x 73GB 15k SCSI


to be clear, those are quad core machine, 2 dual cores each