Check out these as well, if you're looking for a full UI and don't want to create your own:
http://www.wowinterface.com/download...nnsAionUI.html (The addons need updated, but give it a try - the Aion UI is so pretty.)
http://www.wowinterface.com/download...SasDiablo.html (Someone else's take on a Diablo UI.)
http://www.wowinterface.com/download...ZenzaraUI.html (A Celtic-themed art UI.)
http://www.wowinterface.com/download...1920x1080.html (Built on custom graphics.)
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"You'd be surprised how many people violate this simple principle every day of their lives and try to fit square pegs into round holes, ignoring the clear reality that Things Are As They Are." -Benjamin Hoff,
The Tao of Pooh