Well, lets see if i can help you out here. i own both a psp and a ds. i just got the ds and am putting some major hours into it. Lately i have been spending a lot of my time on my ds playing zelda phantom hourglass. if you are wanting something that has nicer graphics and more mature games, then the psp is the way to go. Especially if you are planning on putting a good portion of media on it. There are a few good games out there that make the psp worth owning as well. however, for the ds, with the games that i have seen/played, you definatly have some fun titles out there. imo, ds games have a lot more playability. another thing to take into consideration is the stylus. if you know that a stylus would be annoying, that dont even boother with the ds. but like i said, if you are looking for something that looks good graphic wise w/ media playback and more mature (and not to mention, a large selection of games). then i'd say go for the psp.