I have an action setup in drupal to e-mail me when a new user registers for the site. Right now it is only telling me their user name (%username). Is there a variable that can access added fields so I can get their real name (First Last), or another way to add this info to the action message? So instead of my new user action having a message like:

"%username created an account" -> "jschmoe created and account"

I could have:

"%first_name %last_name (%username) created an account" -> "Joe Schmoe (jschmoe) created an account".

I'm using Content Profile module for the first and last name fields, though have few enough users at the moment that I could switch to Profile module fields.