My husband has been asking for a Nintendo DS for a while now because he has some downtime at work (the poor guy!) that he would like to fill with something other than reading. So I'm thinking about getting one for him as an anniversary or birthday present, but I don't really know which one I should get, as there are currently several different models. Can someone tell me a little bit about each one, or at least about the one that you have, and if you would recommend it, or if you wish you had bought a different model instead? Thanks!