I think I need to paint my computer. I start to get really tired of having some huge ugly white thing occupying half my room.

And it's flat screen.

So technologyppl; is it possible? Or will I destroy it? (never seen a painted computer before so I fear it might be some weird reason not to do it) Is it possible to use flamable colours, or oilbased, or must it be acrylic? Something else I need to think of?

Put it behind a screen

Why are computers white btw? Couldnt they sell them in other colours too?

Yup - they do.
Black.