login

Hi, I'm trying ti figure out the best way to manage login for classifieds on my site. Currently I have changed the you are not logged in message to include links to register and login<

http://url.com/wordpress/wp-register.php
and
http://url.com/wordpress/wp-login.php

what I'd like to do it have it kick them back over the use the front end interface when they have logged in instead of inside the dashboard. Any ideas how to accomplish that? Conversely a login within the body of site, keeping them there on login would be great too. Maybe there is a plugin I could use? I know there's one for BP, but I'm not using BP on this site.

Thanks!