Microsoft has released the Windows Experience Pack for Windows 7 & Windows Live (Thanks Brandon)
Windows Experience Pack – Pick a specific destination (i.e. beach, mountain, safari, or city) and the following Windows Live Messenger elements are created for you to use in Messenger for your alter-ego:
1 Static Display Picture Up to 4 Dynamic Display Pictures A Wink 7 New Emoticons A New Messenger Scene 3 Desktop Backgrounds (Windows 7 Only) Screensaver (Windows 7 Only)
Download –> Windows Experience Pack
Click Here for All Free Windows Live Software & Resources