How does one associate Google Analytics with a particular authenticated user?

Question

What method would you use to associate tracking information in Google Analytics with a particular named user?

I want to be able to do custom reports, and ultimately drill down on usage by user.

EDIT
I was thinking that perhaps the EventTracking API would be able to help somehow.

Also, referring to this documentation.

Answer 1

Since Google Analytics isn't aware of users who are logged into your site you'd have to do that sort of tracking within your site's software itself. If there isn't some sort of plugin or extension out there already you'll probably have to write one yourself that keeps track of what your users do when their logged in.

Answer 2

You could add the user's username as a tracking/segmentation) variable...

pageTracker._setVar(username);

You can only use one _setVar per page, though...

http://www.google.com/support/analytics/bin/answer.py?answer=57045

http://groups.google.com/group/analytics-help-basics/browse_thread/thread/07e29dc610050971