This is my current UI. It's a work in progress, but I think it's starting to look fairly nice!
This is just a single addon, and it's not based on any other existing ones. The artwork is custom, either from scratch or based on my own screenshots from Diablo3. I made it to match D3, yet feel slightly more Warcraft'ish and fit WoW better when using it.
You can find download links and install information over in
this forum should you be interested in trying it out. I update that post on a regular basis with no information and announcements!