Heh, heh. I already own the Ikea Expidit piece and am using it for something else. After reading Rushton's suggestion, I took an LP upstairs to see if it would fit the IKEA piece..voila!, perfect. I'm going to the Ikea website to order one right now. Thanks Rushton for your suggestion.
http://www.ikea.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10103&storeId=12&langId=-1&productId=11499
http://www.ikea.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10103&storeId=12&langId=-1&productId=11499