Nope.
Log in to
My Anandtech using your forums nick & password
Go to
Edit System Rigs Profile
Click
Add System Rigs
Fill out the form and click create, it will foward you to a page that has the new URL to your rig.
Come back to the forums and click
Profile
Scroll to the signature section at the bottom and add this
[L=My Rig Name]http://www.anandtech.com/myanandtech.html?member=3309[/L]
Replace My Rig Name with whatever text you want and change the URL to that of your system rig.