a plea for assistance - Auth...

I've been banging my head against the monitor for the past 2 days on this, and my head hurts! ;) So, I'm here to see if any one has any ideas on how I can accomplish this small task. I use Auth. I have a collection of "protected" pages. If you drop into a protected page, and your not logged in, your switched to the log in page. Once you log in, your then sent to the "entry" page of the site. All standard stuff. But what I'm looking to do is once your logged in, send you back to the original page you asked for. Now, I have this working "outside" Auth. But I'd love to have this inside Auth. A feature of Auth, if you will. Anyone have any ideas? Thanks Walter