I also have a mac pro, and i have gone to the dark side and loaded Vista strictly for games.

reasons?

keyclone, and now running innerspace. (both clonekeys programs choke up running 5 wows, and have no "maximizer" functions)
Wow performs slightly better under DirectX (windows) vs OpenGL (OSX) with 5 clients open, an every little bit helps, and will let me running higher graphics settings

PS, "Fef" if you want to access your OSX drives (i usually like to load a movie to watch while i play but they are all on my mac partition) i use "HFSexplorer" it lets
windows read (and only read) a Mac HFS partition. it only requires you have have java runtime installed.

PS "JUICYFRUIT" if you still want to do it in OSX the script i used was one i got from wowwiki

PHP Code:
#!/bin/sh 
p1="/Applications/World of Warcraft" 
p2=$p1/WoWCopy1
mkdir "$p2" 
ln -s "$p1/Data" "$p2/Data" 
ditto -X "$p1/World of Warcraft.app" "$p2/World of Warcraft.app" 
ln -s "$p1/Interface" "$p2/Interface" 
p3=$p1/WoWCopy2
mkdir "$p3" 
ln -s "$p1/Data" "$p3/Data" 
ditto -X "$p1/World of Warcraft.app" "$p3/World of Warcraft.app" 
ln -s "$p1/Interface" "$p3/Interface" 
p4=$p1/WoWCopy3
mkdir "$p4" 
ln -s "$p1/Data" "$p4/Data" 
ditto -X "$p1/World of Warcraft.app" "$p4/World of Warcraft.app" 
ln -s "$p1/Interface" "$p4/Interface" 
p5=$p1/WoWCopy4
mkdir "$p5" 
ln -s "$p1/Data" "$p5/Data" 
ditto -X "$p1/World of Warcraft.app" "$p5/World of Warcraft.app" 
ln -s "$p1/Interface" "$p5/Interface" 
i did not add in the lines linking the warcraft launcher.app - i never use the launcher to run the game.
i just took the lines starting from p2=p1 and copied them and pasted them at the end and changed p2 to p3......pasted again, changed to p4, and pasted again, then changed to p5
that way it would copy it 4 more times, with 1 run of the script.

i manually navigated to the directory with the wowcopy script and did a chmod wowcopy.sh
without the ~/ infront of it.... i cant remember if i had to put a sudo infront of it, that might help

its been so long since i set it up.