How do tell an application to open in a specific workspace?

More info:

I like to have my C++ IDE in workspace 2, my Java IDE in workspace 3, and my email, browser and miscellaneous in workspace four. I also use a shell script that executes upon log in:

#!/bin/bash
gnome-terminal & # WS 1
netbeans-6-9-1 & # WS2
qtcreator-2-0-1 & # WS 3
firefox & # WS 4
thunderbird & # WS 4

Of course currently it all opens in the curent workspace... Is there a way for me to specify which workspace each command should start in?

Thanks in advance!