you could get some of those storsage units with the cler plastic drawers. that way it's still protected from dust but you can see what's inside.
it seems I remember seeing a video of a really hairy guy who had a room that looked just like yours.
I use one of those storage units, with wheels also! I use it for my Genesis games, and I can store 80 carts in one shelf.
I still don't have any tape racks, not yet... someday...