hi, if you do a search "Camper Shell" there are many many posts with lots of pics. there was a monster thread 2 years back. there had to me 10 pages of pics. Not sure all of the pics still work. but it will give you and idea of how each brand looks.
gl
edit: here it is http://www.toyotanation.com/forum/showthread.php?t=98844&highlight=leer