Vista on this laptop of mine, cheap as they come, 160 Gb drive, 2 GB ram, T5200, yeah just vista, office 07 ultimate, browsers, media players, no downloads yet and it sits at 38 GB used. All editions of Vista are the same as they use the same files, just different features enabled. Add service packs, and all of the updates, you end up with a full drive. This is fortunately why you can get 750 GB for under a hundred bucks. Thank you microsoft for creating the demand.