Beta testing Windows OneCare and ready to quit?

It's inevitable that some people would sign up for a beta test of a product without really thinking through the ramifications of running relatively untested software on their computer. Not necessarily a crisis if it's a new Web browser or email program (though losing data is never good!) but would you sign up to help Microsoft debug a new comprehensive anti-virus, anti-spyware management system for Windows if you knew you had to disable every other safety application on your computer to do so? Maybe. But then what happens when you decide you want to quit?

    How to Remove Microsoft Windows OneCare

When this application ships, I'll probably be one of the first to install it, but as a beta? That makes me far too nervous...