I just got my son a Games N Music thing.  I was told it was more stable than its' predacessors (can't spell).  But the microchip is only a 128 I think.  I want to get something for my own DS because I'm big into pictures, videos and music.  Should I get myself the same thing, but buy a 2g chip for it too (and how much is that, where would I get it?)?  Or should I get an R4DS or something else instead?