i had a PSP and i didnt like it that much. yes u get a memory card with it but only small 32MB me thinks. the psp is good for other media such as videos n such, which i found good until i realised what a waste of time it was, if i want to watch sum vids i can go on my pc. the games for the psp are pretty poo, i cant think of 1 game which is worth spending £20 on.
i now have a DS lite and find it a lot more entertaining as the games are more entertaining, the ds is meant for games, if you wanna watch vids or look at pics, get an ipod video theres no need for them on a GAMES console.
i am not a nintendo fanboy otherwise i wouldnt of HAD a psp, so before anyone is like WTF OMFG OMG OFGMDN and woteva, its just my opinion