Run homebrew on your DS with an EZ-Flash IV lite (for DS Lite's) only, white, comes with card reader and USB cable, fully boxed, £20 delivered.

Ideal for someone who not only wants DS Backups + Homebrew but also ability to play GBA games (which the Slot1 cards don't allow).

You'll need a passme or have soft-modded your NDS to boot from the cart. Oh and takes microSD cards (not miniSD,SD)..