A font manager will help you uninstall and still keep your fonts. I use NexusFont with Win7, but there are others available (including The Font Thing).
http://xiles.net/downloads/#NexusFontWhat you will do is
Install and open the NexusFont.
Select all of the fonts that you want to move.
Uninstall (Font/Uninstall) and select "move to the Backup location".
Open the backup location (Tools/Open backup folder).
Now you can move the font files to where you want them.
I like to keep mine in a folder in My Documents. That way they are easy to find and get backed up when everything else backed up.
ETA: If you uninstall the fonts and leave them where they are, they will be hidden from you. If this happens to anyone, let me know and I will try to explain what to do (been there, done that, thought I lost ALL of my good fonts).