Thanks Leon. I did find this old Net54 thread, but it didn't seem like the pages were working too good:
http://www.net54baseball.com/showthread.php?p=444142
And I haven't found any other type slab holder pages yet via Google. Also ... I was curious if others may be displaying in a different manner that I haven't thought of (that I might try). Right now I have my slabbed cards in a box with the top cut off. Not very creative, but I'm not too creative a person when it comes to these kinds of things :-)