Moving O/S to another Partition

Hey all,
How does one move their O/S to another partion?
I have my WINXP on a 20g partion and would like to move it to a 10 gig and I would also like to keep all my existing files on the 20g intact...is this possible?
Thanks all for your time

You can clone a partition using Norton Ghost - copies everything over to either another partition, or to an image.

Sweet, nice idea! I will give that a try....I have to reinstall Norton and I will give her a go...Now do I need to uninstall WINXP from my C Partition when that is done w/? ...If I leave the O/S on both partitions will I get a choice from which one to boot from?

Windows will automatically boot off of the first primary partition on the first IDE master.