If you have any questions or requests for tutorials, post a comment or pm
me.
Additional Information:
Make sure you back up any information you would not want to loose, as you always run the small risk of possibly damaging or loosing data, and I take no responsibility for that.
Also, run a defragment before you partition, this will speed it up a little, and minimize the risk of data loss.
Let the check disk run on your start up after you apply your partitions.
This will work with almost any operating system.
Links:
-GParted
http://gparted.sourceforge.net/download.php
-How to Defragement
http://www.youtube.com/watch?v=0iU0W3F6Ats
-How to burn a iso
http://www.youtube.com/watch?v=oJI_NPCsfyQ
-How to boot from a CD