Is it ever desirable to recording vocals with any latency? I officially vote no.

I've figured out how to make a perfect backup of my C: drive which contains Windows XP, my recording software, all plugins, cd burning software, and all VSTi's. In the event of a problem, I can perfectly restore my entire system in less than 20 minutes and with the press of just a few buttons.

Clicks, pops, and computer problems potentially caused by IRQ problems.

Dramatically improve the reliability of your recording software by using a clean Windows operating system.