For those interested in NTFS junction points...

Here's a graphical UI for creating Junction points. I'm not the author or tech support so don't hate me if you have problems... but I used it tonight for 5 WoW data directories and it worked flawlessly for me.

http://www.rekenwonder.com/linkmagic.htm

Good Luck!

i can amend to this

used it too and works very nice and easy
used it on my old winXP setup
and used the 'beta' version on 64-Vista

no problems whatsoever