I posted in here once, a long time ago, back when Naxx was still all the rage, but I recently got a new monitor [and it's huge!] so, I realized my old UI wasn't going to cut it anymore, especially with all the new-found screen space.
So, I upgraded. I found a UI online that looked similar to how I wanted it, happened to be MaleosUI; and then I modified it and pretty much took out a good chunk of what made it distinctively MaleosUI. I absolutely love this UI, and there's not much I would change about it anymore, if anything. Linked, to make life a bit easier on those with smaller resolutions, however, I do have to warn about the 462 KB of large-ness, haha. For those who are wondering about 25 man settings with this layout, healbot fills up the empty space between the end of my action bars and the rest of HB, and everyone fits in there perfectly.
If anyone wants a list of mods, for whatever reason, you can drop me a line or whatever, or post here, I'll check back sooner or later, haha.
Here's my UI!