I was inspired by montecarlojoe's display and wanted to do something similar. However, it took me almost a year to get my act together and by the time I did, Ikea wasn't selling the shelves he used anymore. Luckily, I was able to find these Knoppang picture rails http://www.ikea.com/us/en/catalog/products/40291790/
. I actually mounted them upside down so that there is no rail to obscure the cards. I think it turned out pretty well, if I do say so myself. Looking back at his original pics, however, I'm thinking maybe I should have gotten a few more. At least these are still in stock and the ship them so I don't have to actually set foot in an Ikea. Anyway, thanks to Joe for the inspiration and I'll be sure to update if I actually make any more additions.