As far as i know there is no required system. I have a toshiba, works great. lots of people have dells because you get a discount on them through the school. The only things I would say make sure you get is an 802.11b wireless with integrated antenna, and a pretty fast processor so you can download all the powerpoints. Wait if you want to, but there is really no need. This is the first year they are doing this computer thing, so I doubt that it will be some sort of big deal. Just have one I think is the main point.