keep your
ds lite.... you can just buy a flashcart and put homebrew on it and listen to music, watch vids, look at pics, and download a whole bunch of homebrew also which is like apps in the dsiware store, but are all free. you can even get a flipbook app homebrew thingy (animanatee) thats exactly like flipnote.... and u can also get a browser (dshobro) so u can surf the web....trust me...
EDIT: oh yea and theres no point in the camera... it sucks.... and the photo editing/music editing thing sucks also... if u really wanted to edit pics or music just dowload for free GIMP or audacity..