Any idea on policy..?

My DS is dying. The top-screen is currently suffering from extreme colour problems. It started off being blue horizontal lines showing up, but has since deteriorated to fuzzy, distorted colours and red, green and blue lines. Also, the screen shows up green or red when it should be black.

So I was wondering how I should go about getting this fixed. I don't have the money for a new DS, but I recently bought FFTA2 and so I don't want that money to go to waste.

Any ideas?

Used DS!

Sell it as "Nintendo DS, Limited Psychedelic Edition" for twice the store price.