In windows Vista, Microsoft tends to centralize everything (with an anything but technically complicated panel), Media Center should have been the center for multimedia ? But that does not ship with all windows vista editions, So here comes Windows Gallery, somewhere to display images, audio, and video, Yet this is not really media center here, I will have Screen shots ready for you later today).
NOTE: You can save up to $160 dollars if you do not want tech. support from Microsoft (You will get windows updates), To see how, Visit the checklist page.
Windows Vista OEM is meant to be cheaper since there is no tech support, But also installs on 1 computer only and can not be transferred to another computer