OK, you've tempted me to share my trick, since you guys are so excited about this one

Post this code into a page and check your roll over. How does it look? Click it and it will send the user to the encoded page, not the page they see in the status bar.
HTML Code:
<a href="http://affiliates.allposters.com/link/redirect.asp?AID=48002714&PSTID=1<ID=19&LID=112&ParentAID=48002714" onmouseover="window.status='http://www.allposters.com';return true;" onmouseout="window.status=' ';return true;">http://www.allposters.com</a>