If I were you I'd just buy some small bookshelves and put your books and DVD's on.
I just got this for the stuff I use often, so it's always close by.
My problem is that my room is small, my friends are always over, and I need a place where they won't see them. If they open a shoebox looking for a ski mag and find my stuff, it's not good. But If they find a locked case and I say "Oh, that's one of my dad's old cases, he lost the key a few years back", it's better. Staples has some for $12 each, but fleamarkets are my main search point.
My friend went searching for balloons to put needles in and almost came across some stuff in a drawer. That's why I need a locked case.