Put it down...

I'm quite interested in shelving right now. I have a wall that needs covering and I have books and nicknack's that need somewhere to live. Now I don't want anything complicated - since I have to make it. And I don't have much space to play with. But its nice to look at what's out there...












Now, I've got to sort some shelves out for my flat using as little money as possible. I have material - 30mm shutterply type wood from shipping crates - and I have someone who will cut it to size for me. But how? And to what end? How will I finish them off?