Modern and high-resolution Windows 7 desktop theme includes:
Sounds from official soundtrack for each system event
Full HD Wallpaper (1920x1080) (source: http://rogueshollow.com/blogs/category/millennium/ )
Important! In Windows 7 it is not possible to change system start-up sound without using some unofficial solutions (like as: http://social.technet.microsoft.com/Forums/en-US/w7itprogeneral/thread/34ba1710-aeb5-47e6-b371-d5e44febd39a/ ). Intro sound this theme contains will be playing only if you log-out and then log-on as a user.