I use the classic modified uxtheme.dll file to install 3rd party Visual Styles directly. Don't like programs just to change the way my system looks. ;)
Give me the modded uxtheme.dll and Luna Element 5.1 and I'm the happeh.
yeah, the official MS zune theme is also nice for those wanting a change, but not wanting to fiddle with 3rd party stuff. Its a nice dark theme, with an orange start button, once you get rid of the lame wallie it comes with, it looks purrty - I always use it on the xp side of my dualboot - im so sick of the blue luna theme....ugh!
http://zuneinfo.com/wp-content/uploads/2006/11/Zune-Theme1.jpg)
mtfbwya