Contrary to the belief that OneCare 1.5 will be available from 30th January, it is now available on the OneCare website for download. Choose to download the 90 day free trial, and its all yours. If you are running Windows Vista, this is probably a must-have.

Download:
http://iorigin.onecare.live.com/cli/latest/SetupOneCare.exe

MoreInfo@ http://onecare.live.com/

For people already running OneCare, you'll be prompted to automatically update.