Yes, you can use a "0" refresh. See: http://www.charleyjones.com (on RAQ2)
This CAN be done, but it effectively breaks the back button for most users. Every time they attempt to go back they wind up going forward again. I always set my refresh to 2 seconds to avoid this...
This is one of Jakob Neilson's top ten web design mistakes: http://www.useit.com/alertbox/990530.html doug