Depending on how frequently you may want to use/take out the CDs you can design alphabetic sorters and put them in drawers kind of like at record stores or if you want to use them more often (or have them displayed in a cool way) you can get one of those rolling carts, especially if they are made of wood, they always make for an interesting display. If you go the rolling cart route, I suggest that you thrift one, there is all kinds of carved and/or painted rolling carts that you can find.